[原创] 扩展jquery-treegrid插件, 实现勾选功能和全删按钮.

新上手一个项目, 因而正好想学习下bootstrap, 所以就采用asp.net mvc + bootstrap来做.  因为需要TreeGrid的控件, 本来想用easyUI、LingerUi、DWZ, 但显示效果总觉得不协调. 搜来搜去, 发现了牛人写的 jquery-treegrid, 所以就参考这园子里的两篇文章开始做:

JS组件系列——自己动手封装bootstrap-treegrid组件:      http://www.cnblogs.com/landeanfen/p/6776152.html

JS组件系列——封装自己的JS组件，你也可以:     http://www.cnblogs.com/landeanfen/p/5124542.html

这次目的是扩展jquery-treegrid插件, 实现checkbox的全选、单选, 也照着上文添加了ajax远程获取数据的功能. 虽然后来发现了Kendo UI, 但本着学习的目的, 还是完成了这次的插件扩展功能.

由于常年没有接触过前端, 所以jquery基本语法都磕磕绊绊更别说扩展插件了, 边摸索边做.  待我改完一版本, 才能理解了jquery-treegrid插件的作者真的牛掰:

1. jquery-treegrid思想: 没有硬编码的html, 全部通过css样式实现. 像树形结点的维护、结点的打开与折叠状态, 都是由写在TR元素上的css来实现. 也倒是jquery本身不熟吧, 我第一次见这么少的html来实现的jQuery控件.

2. 插件的结构: 跟上面的总体结构类似, 都是  method{}方法集合、$.fn.treegrid扩展、default{}默认参数对象. 其通过初始化函数initTree来开始渲染table元素, 通过保存控件容器(TreeContainer) -> 保存全局设置(Settings) -> 递归地初始化结点(initNode) -> 为每个结点添加事件(intExpander、initIdent、initEvents、initState、initChangeEvent、initSettingsEvents)来完成最终功能. 整体上有点面向对象的意味, 跟之前自己写的JS差距甚大.

刚开始我也是照着前面两篇的文章来实现了基本的样子, 当我快做完的时候才理解了jquery-treegrid控件作者的思路. 根据前两篇文章的思路, 就是在初始化方法中, 通过ajax获取数据, 然后在回调方法中拼接HTML表格, 来完成对jquery-treegrid的远程取数据的扩展. 当我基本理解了jQuery-treegrid作者的思想以后, 尝试将上面的代码改成: 在获取远程数据后, render表格(renderHeader、RenderBody、递归的生成List类型的Tr和Tree类型的Tr)、之后初始化Header(初始化checkAll、DelAll、操作列)、再往后初始化结点(initExpander、initIndent、initCheck、initOperation、initEvnets、initState、initChangeEvent、initSettingsEvents).   所有操作(如:全选、全部选、直选部分)等操作, 也都是通过在Tr元素上附加css来实现的.

总结实现过程的砍儿:

1. 理解插件开发思路及手段, 为什么采用如此结构来组织插件.

2. 控件状态的处理其实是使用了cookie, 用jquery-cookie来实现的.

3. 特别要理解This所代表的对象, 可以在调试界面一步步验证this所代表的对象.

4. 关于原jquery-treegrid插件的封装, $(this).原控件('方法名','参数')来封装. 这里需要注意的是: 在我们自己的扩展代码中, 关于状态保存、容器位置、设置保存等内容, 我都是通过对原控件的封装, 将这些数据写在同一个位置, 以便实现我们自己的控件和原控件之间的数据共享.

5. 默认default对象之中的方法的调用: 1. 通过settings.方法名.apply(this, '参数')来调用. 2. 通过我们扩展控件中封装的, $(this).treegridExt('getSetting','方法名').apply(this,'参数')来实现的.

6. 注意参数的问题: 有时用this、有时用$(this)、有时用$($(this).treegridExt('方法名'))、有使用[$(this)], 有时用apply(this)、还有时用apply($(Elem))等等. 决定使用哪种方式的的根本原因就是 this所代表的当前对象. 根据当前对象的不同, 来变换几种参数形式.

最后, 废话不多说, 上代码. 注意: 改代码只实现了全选、全不选、选子项、以及子项变更后对父级选项的调整.  之后没有再深入编码, 因为项目还是比较紧, 考虑一个个控件自己搞还是太费劲了, 准备采用Kendo控件来完成项目, 此Demo仅作为学习jquery和扩展其插件的相关知识为目的. 顺带对老大说声抱歉, 多耽误2,3天(算上端午的话可能是5天).

//jquery.treegrid.js

/*
 * jQuery treegrid Plugin 0.3.0
 * https://github.com/maxazan/jquery-treegrid
 *
 * Copyright 2013, Pomazan Max
 * Licensed under the MIT licenses.
 */
(function($) {

    var methods = {
        /**
         * Initialize tree
         *
         * @param {Object} options
         * @returns {Object[]}
         */
        initTree: function(options) {
            var settings = $.extend({}, this.treegrid.defaults, options);
            return this.each(function() {
                var $this = $(this);
                $this.treegrid('setTreeContainer', $(this));
                $this.treegrid('setSettings', settings);
                settings.getRootNodes.apply(this, [$(this)]).treegrid('initNode', settings);
                $this.treegrid('getRootNodes').treegrid('render');
            });
        },
        /**
         * Initialize node
         *
         * @param {Object} settings
         * @returns {Object[]}
         */
        initNode: function(settings) {
            return this.each(function() {
                var $this = $(this);
                $this.treegrid('setTreeContainer', settings.getTreeGridContainer.apply(this));
                $this.treegrid('getChildNodes').treegrid('initNode', settings);
                $this.treegrid('initExpander').treegrid('initIndent').treegrid('initEvents').treegrid('initState').treegrid('initChangeEvent').treegrid("initSettingsEvents");
            });
        },
        initChangeEvent: function() {
            var $this = $(this);
            //Save state on change
            $this.on("change", function() {
                var $this = $(this);
                $this.treegrid('render');
                if ($this.treegrid('getSetting', 'saveState')) {
                    $this.treegrid('saveState');
                }
            });
            return $this;
        },
        /**
         * Initialize node events
         *
         * @returns {Node}
         */
        initEvents: function() {
            var $this = $(this);
            //Default behavior on collapse
            $this.on("collapse", function() {
                var $this = $(this);
                $this.removeClass('treegrid-expanded');
                $this.addClass('treegrid-collapsed');
            });
            //Default behavior on expand
            $this.on("expand", function() {
                var $this = $(this);
                $this.removeClass('treegrid-collapsed');
                $this.addClass('treegrid-expanded');
            });

            return $this;
        },
        /**
         * Initialize events from settings
         *
         * @returns {Node}
         */
        initSettingsEvents: function() {
            var $this = $(this);
            //Save state on change
            $this.on("change", function() {
                var $this = $(this);
                if (typeof($this.treegrid('getSetting', 'onChange')) === "function") {
                    $this.treegrid('getSetting', 'onChange').apply($this);
                }
            });
            //Default behavior on collapse
            $this.on("collapse", function() {
                var $this = $(this);
                if (typeof($this.treegrid('getSetting', 'onCollapse')) === "function") {
                    $this.treegrid('getSetting', 'onCollapse').apply($this);
                }
            });
            //Default behavior on expand
            $this.on("expand", function() {
                var $this = $(this);
                if (typeof($this.treegrid('getSetting', 'onExpand')) === "function") {
                    $this.treegrid('getSetting', 'onExpand').apply($this);
                }

            });

            return $this;
        },
        /**
         * Initialize expander for node
         *
         * @returns {Node}
         */
        initExpander: function() {
            var $this = $(this);
            var cell = $this.find('td').get($this.treegrid('getSetting', 'treeColumn'));
            var tpl = $this.treegrid('getSetting', 'expanderTemplate');
            var expander = $this.treegrid('getSetting', 'getExpander').apply(this);
            if (expander) {
                expander.remove();
            }
            $(tpl).prependTo(cell).click(function() {
                $($(this).closest('tr')).treegrid('toggle');
            });
            return $this;
        },
        /**
         * Initialize indent for node
         *
         * @returns {Node}
         */
        initIndent: function() {
            var $this = $(this);
            $this.find('.treegrid-indent').remove();
            var tpl = $this.treegrid('getSetting', 'indentTemplate');
            var expander = $this.find('.treegrid-expander');
            var depth = $this.treegrid('getDepth');
            for (var i = 0; i < depth; i++) {
                $(tpl).insertBefore(expander);
            }
            return $this;
        },
        /**
         * Initialise state of node
         *
         * @returns {Node}
         */
        initState: function() {
            var $this = $(this);
            if ($this.treegrid('getSetting', 'saveState') && !$this.treegrid('isFirstInit')) {
                $this.treegrid('restoreState');
            } else {
                if ($this.treegrid('getSetting', 'initialState') === "expanded") {
                    $this.treegrid('expand');
                } else {
                    $this.treegrid('collapse');
                }
            }
            return $this;
        },
        /**
         * Return true if this tree was never been initialised
         *
         * @returns {Boolean}
         */
        isFirstInit: function() {
            var tree = $(this).treegrid('getTreeContainer');
            if (tree.data('first_init') === undefined) {
                tree.data('first_init', $.cookie(tree.treegrid('getSetting', 'saveStateName')) === undefined);
            }
            return tree.data('first_init');
        },
        /**
         * Save state of current node
         *
         * @returns {Node}
         */
        saveState: function() {
            var $this = $(this);
            if ($this.treegrid('getSetting', 'saveStateMethod') === 'cookie') {

                var stateArrayString = $.cookie($this.treegrid('getSetting', 'saveStateName')) || '';
                var stateArray = (stateArrayString === '' ? [] : stateArrayString.split(','));
                var nodeId = $this.treegrid('getNodeId');

                if ($this.treegrid('isExpanded')) {
                    if ($.inArray(nodeId, stateArray) === -1) {
                        stateArray.push(nodeId);
                    }
                } else if ($this.treegrid('isCollapsed')) {
                    if ($.inArray(nodeId, stateArray) !== -1) {
                        stateArray.splice($.inArray(nodeId, stateArray), 1);
                    }
                }
                $.cookie($this.treegrid('getSetting', 'saveStateName'), stateArray.join(','));
            }
            return $this;
        },
        /**
         * Restore state of current node.
         *
         * @returns {Node}
         */
        restoreState: function() {
            var $this = $(this);
            if ($this.treegrid('getSetting', 'saveStateMethod') === 'cookie') {
                var stateArray = $.cookie($this.treegrid('getSetting', 'saveStateName')).split(',');
                if ($.inArray($this.treegrid('getNodeId'), stateArray) !== -1) {
                    $this.treegrid('expand');
                } else {
                    $this.treegrid('collapse');
                }

            }
            return $this;
        },
        /**
         * Method return setting by name
         *
         * @param {type} name
         * @returns {unresolved}
         */
        getSetting: function(name) {
            if (!$(this).treegrid('getTreeContainer')) {
                return null;
            }
            return $(this).treegrid('getTreeContainer').data('settings')[name];
        },
        /**
         * Add new settings
         *
         * @param {Object} settings
         */
        setSettings: function(settings) {
            $(this).treegrid('getTreeContainer').data('settings', settings);
        },
        /**
         * Return tree container
         *
         * @returns {HtmlElement}
         */
        getTreeContainer: function() {
            return $(this).data('treegrid');
        },
        /**
         * Set tree container
         *
         * @param {HtmlE;ement} container
         */
        setTreeContainer: function(container) {
            return $(this).data('treegrid', container);
        },
        /**
         * Method return all root nodes of tree.
         *
         * Start init all child nodes from it.
         *
         * @returns {Array}
         */
        getRootNodes: function () {
            return $(this).treegrid('getSetting', 'getRootNodes').apply(this, [$(this).treegrid('getTreeContainer')]);
        },
        /**
         * Method return all nodes of tree.
         *
         * @returns {Array}
         */
        getAllNodes: function() {
            return $(this).treegrid('getSetting', 'getAllNodes').apply(this, [$(this).treegrid('getTreeContainer')]);
        },
        /**
         * Mthod return true if element is Node
         *
         * @returns {String}
         */
        isNode: function() {
            return $(this).treegrid('getNodeId') !== null;
        },
        /**
         * Mthod return id of node
         *
         * @returns {String}
         */
        getNodeId: function() {
            if ($(this).treegrid('getSetting', 'getNodeId') === null) {
                return null;
            } else {
                return $(this).treegrid('getSetting', 'getNodeId').apply(this);
            }
        },
        /**
         * Method return parent id of node or null if root node
         *
         * @returns {String}
         */
        getParentNodeId: function() {
            return $(this).treegrid('getSetting', 'getParentNodeId').apply(this);
        },
        /**
         * Method return parent node or null if root node
         *
         * @returns {Object[]}
         */
        getParentNode: function() {
            if ($(this).treegrid('getParentNodeId') === null) {
                return null;
            } else {
                return $(this).treegrid('getSetting', 'getNodeById').apply(this, [$(this).treegrid('getParentNodeId'), $(this).treegrid('getTreeContainer')]);
            }
        },
        /**
         * Method return array of child nodes or null if node is leaf
         *
         * @returns {Object[]}
         */
        getChildNodes: function() {
            return $(this).treegrid('getSetting', 'getChildNodes').apply(this, [$(this).treegrid('getNodeId'), $(this).treegrid('getTreeContainer')]);
        },
        /**
         * Method return depth of tree.
         *
         * This method is needs for calculate indent
         *
         * @returns {Number}
         */
        getDepth: function() {
            if ($(this).treegrid('getParentNode') === null) {
                return 0;
            }
            return $(this).treegrid('getParentNode').treegrid('getDepth') + 1;
        },
        /**
         * Method return true if node is root
         *
         * @returns {Boolean}
         */
        isRoot: function() {
            return $(this).treegrid('getDepth') === 0;
        },
        /**
         * Method return true if node has no child nodes
         *
         * @returns {Boolean}
         */
        isLeaf: function() {
            return $(this).treegrid('getChildNodes').length === 0;
        },
        /**
         * Method return true if node last in branch
         *
         * @returns {Boolean}
         */
        isLast: function() {
            if ($(this).treegrid('isNode')) {
                var parentNode = $(this).treegrid('getParentNode');
                if (parentNode === null) {
                    if ($(this).treegrid('getNodeId') === $(this).treegrid('getRootNodes').last().treegrid('getNodeId')) {
                        return true;
                    }
                } else {
                    if ($(this).treegrid('getNodeId') === parentNode.treegrid('getChildNodes').last().treegrid('getNodeId')) {
                        return true;
                    }
                }
            }
            return false;
        },
        /**
         * Method return true if node first in branch
         *
         * @returns {Boolean}
         */
        isFirst: function() {
            if ($(this).treegrid('isNode')) {
                var parentNode = $(this).treegrid('getParentNode');
                if (parentNode === null) {
                    if ($(this).treegrid('getNodeId') === $(this).treegrid('getRootNodes').first().treegrid('getNodeId')) {
                        return true;
                    }
                } else {
                    if ($(this).treegrid('getNodeId') === parentNode.treegrid('getChildNodes').first().treegrid('getNodeId')) {
                        return true;
                    }
                }
            }
            return false;
        },
        /**
         * Return true if node expanded
         *
         * @returns {Boolean}
         */
        isExpanded: function() {
            return $(this).hasClass('treegrid-expanded');
        },
        /**
         * Return true if node collapsed
         *
         * @returns {Boolean}
         */
        isCollapsed: function() {
            return $(this).hasClass('treegrid-collapsed');
        },
        /**
         * Return true if at least one of parent node is collapsed
         *
         * @returns {Boolean}
         */
        isOneOfParentsCollapsed: function() {
            var $this = $(this);
            if ($this.treegrid('isRoot')) {
                return false;
            } else {
                if ($this.treegrid('getParentNode').treegrid('isCollapsed')) {
                    return true;
                } else {
                    return $this.treegrid('getParentNode').treegrid('isOneOfParentsCollapsed');
                }
            }
        },
        /**
         * Expand node
         *
         * @returns {Node}
         */
        expand: function() {
            if (!this.treegrid('isLeaf') && !this.treegrid("isExpanded")) {
                this.trigger("expand");
                this.trigger("change");
                return this;
            }
            return this;
        },
        /**
         * Expand all nodes
         *
         * @returns {Node}
         */
        expandAll: function() {
            var $this = $(this);
            $this.treegrid('getRootNodes').treegrid('expandRecursive');
            return $this;
        },
        /**
         * Expand current node and all child nodes begin from current
         *
         * @returns {Node}
         */
        expandRecursive: function() {
            return $(this).each(function() {
                var $this = $(this);
                $this.treegrid('expand');
                if (!$this.treegrid('isLeaf')) {
                    $this.treegrid('getChildNodes').treegrid('expandRecursive');
                }
            });
        },
        /**
         * Collapse node
         *
         * @returns {Node}
         */
        collapse: function() {
            return $(this).each(function() {
                var $this = $(this);
                if (!$this.treegrid('isLeaf') && !$this.treegrid("isCollapsed")) {
                    $this.trigger("collapse");
                    $this.trigger("change");
                }
            });
        },
        /**
         * Collapse all nodes
         *
         * @returns {Node}
         */
        collapseAll: function() {
            var $this = $(this);
            $this.treegrid('getRootNodes').treegrid('collapseRecursive');
            return $this;
        },
        /**
         * Collapse current node and all child nodes begin from current
         *
         * @returns {Node}
         */
        collapseRecursive: function() {
            return $(this).each(function() {
                var $this = $(this);
                $this.treegrid('collapse');
                if (!$this.treegrid('isLeaf')) {
                    $this.treegrid('getChildNodes').treegrid('collapseRecursive');
                }
            });
        },
        /**
         * Expand if collapsed, Collapse if expanded
         *
         * @returns {Node}
         */
        toggle: function() {
            var $this = $(this);
            if ($this.treegrid('isExpanded')) {
                $this.treegrid('collapse');
            } else {
                $this.treegrid('expand');
            }
            return $this;
        },
        /**
         * Rendering node
         *
         * @returns {Node}
         */
        render: function() {
            return $(this).each(function() {
                var $this = $(this);
                //if parent colapsed we hidden
                if ($this.treegrid('isOneOfParentsCollapsed')) {
                    $this.hide();
                } else {
                    $this.show();
                }
                if (!$this.treegrid('isLeaf')) {
                    $this.treegrid('renderExpander');
                    $this.treegrid('getChildNodes').treegrid('render');
                }
            });
        },
        /**
         * Rendering expander depends on node state
         *
         * @returns {Node}
         */
        renderExpander: function() {
            return $(this).each(function() {
                var $this = $(this);
                var expander = $this.treegrid('getSetting', 'getExpander').apply(this);
                if (expander) {

                    if (!$this.treegrid('isCollapsed')) {
                        expander.removeClass($this.treegrid('getSetting', 'expanderCollapsedClass'));
                        expander.addClass($this.treegrid('getSetting', 'expanderExpandedClass'));
                    } else {
                        expander.removeClass($this.treegrid('getSetting', 'expanderExpandedClass'));
                        expander.addClass($this.treegrid('getSetting', 'expanderCollapsedClass'));
                    }
                } else {
                    $this.treegrid('initExpander');
                    $this.treegrid('renderExpander');
                }
            });
        }
    };
    $.fn.treegrid = function(method) {
        if (methods[method]) {
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            return methods.initTree.apply(this, arguments);
        } else {
            $.error('Method with name ' + method + ' does not exists for jQuery.treegrid');
        }
    };
    /**
     *  Plugin's default options
     */
    $.fn.treegrid.defaults = {
        initialState: 'expanded',
        saveState: false,
        saveStateMethod: 'cookie',
        saveStateName: 'tree-grid-state',
        expanderTemplate: '<span class="treegrid-expander"></span>',
        indentTemplate: '<span class="treegrid-indent"></span>',
        expanderExpandedClass: 'treegrid-expander-expanded',
        expanderCollapsedClass: 'treegrid-expander-collapsed',
        treeColumn: 0,
        getExpander: function() {
            return $(this).find('.treegrid-expander');
        },
        getNodeId: function() {
            var template = /treegrid-([A-Za-z0-9_-]+)/;
            if (template.test($(this).attr('class'))) {
                return template.exec($(this).attr('class'))[1];
            }
            return null;
        },
        getParentNodeId: function() {
            var template = /treegrid-parent-([A-Za-z0-9_-]+)/;
            if (template.test($(this).attr('class'))) {
                return template.exec($(this).attr('class'))[1];
            }
            return null;
        },
        getNodeById: function(id, treegridContainer) {
            var templateClass = "treegrid-" + id;
            return treegridContainer.find('tr.' + templateClass);
        },
        getChildNodes: function(id, treegridContainer) {
            var templateClass = "treegrid-parent-" + id;
            return treegridContainer.find('tr.' + templateClass);
        },
        getTreeGridContainer: function() {
            return $(this).closest('table');
        },
        getRootNodes: function(treegridContainer) {
            var result = $.grep(treegridContainer.find('tr'), function(element) {
                var classNames = $(element).attr('class');
                var templateClass = /treegrid-([A-Za-z0-9_-]+)/;
                var templateParentClass = /treegrid-parent-([A-Za-z0-9_-]+)/;
                return templateClass.test(classNames) && !templateParentClass.test(classNames);
            });
            return $(result);
        },
        getAllNodes: function(treegridContainer) {
            var result = $.grep(treegridContainer.find('tr'), function(element) {
                var classNames = $(element).attr('class');
                var templateClass = /treegrid-([A-Za-z0-9_-]+)/;
                return templateClass.test(classNames);
            });
            return $(result);
        },
        //Events
        onCollapse: null,
        onExpand: null,
        onChange: null

    };
})(jQuery);

//jquery.treegrid.css

.treegrid-indent {width:16px; height: 16px; display: inline-block; position: relative;}

.treegrid-expander {width:16px; height: 16px; display: inline-block; position: relative; cursor: pointer;}

.treegrid-expander-expanded{background-image: url(../img/collapse.png); }
.treegrid-expander-collapsed{background-image: url(../img/expand.png);}

//jquery.treegrid.bootstrap3.js

$.extend($.fn.treegrid.defaults, {
    expanderExpandedClass: 'glyphicon glyphicon-chevron-down',
    expanderCollapsedClass: 'glyphicon glyphicon-chevron-right'
});

//jquey.cookie.js

/*!
 * jQuery Cookie Plugin v1.3.1
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2013 Klaus Hartl
 * Released under the MIT license
 */
(function (factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as anonymous module.
        define(['jquery'], factory);
    } else {
        // Browser globals.
        factory(jQuery);
    }
}(function ($) {

    var pluses = /\+/g;

    function decode(s) {
        if (config.raw) {
            return s;
        }
        return decodeURIComponent(s.replace(pluses, ' '));
    }

    function decodeAndParse(s) {
        if (s.indexOf('"') === 0) {
            // This is a quoted cookie as according to RFC2068, unescape...
            s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
        }

        s = decode(s);

        try {
            return config.json ? JSON.parse(s) : s;
        } catch(e) {}
    }

    var config = $.cookie = function (key, value, options) {

        // Write
        if (value !== undefined) {
            options = $.extend({}, config.defaults, options);

            if (typeof options.expires === 'number') {
                var days = options.expires, t = options.expires = new Date();
                t.setDate(t.getDate() + days);
            }

            value = config.json ? JSON.stringify(value) : String(value);

            return (document.cookie = [
                config.raw ? key : encodeURIComponent(key),
                '=',
                config.raw ? value : encodeURIComponent(value),
                options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
                options.path    ? '; path=' + options.path : '',
                options.domain  ? '; domain=' + options.domain : '',
                options.secure  ? '; secure' : ''
            ].join(''));
        }

        // Read
        var cookies = document.cookie.split('; ');
        var result = key ? undefined : {};
        for (var i = 0, l = cookies.length; i < l; i++) {
            var parts = cookies[i].split('=');
            var name = decode(parts.shift());
            var cookie = parts.join('=');

            if (key && key === name) {
                result = decodeAndParse(cookie);
                break;
            }

            if (!key) {
                result[name] = decodeAndParse(cookie);
            }
        }

        return result;
    };

    config.defaults = {};

    $.removeCookie = function (key, options) {
        if ($.cookie(key) !== undefined) {
            // Must not alter options, thus extending a fresh object...
            $.cookie(key, '', $.extend({}, options, { expires: -1 }));
            return true;
        }
        return false;
    };

}));

////以上是jquery-treegrid的主要先关内容, 以下是这次扩展的代码

//jquey.treegrid.extention.js

/*
 * jQuery treegrid extension 0.1.0
 *
 * Copyright 2017, Jalen Zhang
 * Licensed under the MIT licenses.
 */

; (function ($) {
    "use strict";   //严格模式下, 全局对象无法使用默认绑定

    /*begin private functions*/
    var nodeCount = 0;  //全局结点计数
    //从数据中获取跟结点
    var getRootNodesFromData = function (data,isTreedData,parentCol,sortCol) {
        var result = [];
        $.each(data, function (index, item) {
            if (isTreedData || !item[parentCol] || item[parentCol] == 0) {
                result.push(item);
            }
        });
        if (sortCol) {
            result.sort(function (a, b) {
                return a[sortCol] - b[sortCol];
            });
        }
        return result;

    }
    //从数据中获取子节点
    var getListChildNodesFromData = function (data, parentNode,idCol,parentCol,sortCol) {
        var unsort = [];
        $.each(data, function (i, item) {
            if (item[parentCol] == parentNode[idCol]) {
                unsort.push(item);
            }
        });
        if (unsort == null || unsort.length < 1)
            return;

        if (sortCol) {
            unsort.sort(function (a, b) {
                return a[sortCol] - b[sortCol];
            });
        }
        return unsort;
    }
    var getTreeChildNodesFromdata = function (parentNode,childCol,sortCol) {
        if (childCol) {
            var childNodes = parentNode[childCol];
            if (sortCol)
                childNodes.sort(function (a, b) {
                    return a[sortCol] - b[sortCol];
                });
            return childNodes;
        }
        return null;
    }
    /*end private functions*/

    /*Main*/
    $.fn.treegridExt = function (method) {
        if (methods[method]) {
            //如果是调用方法(参数对象中含有方法名)
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            //调用初始化函数(参数不含方法名)
            return methods.initExtTree.apply(this, arguments);
        } else {
            $.error('Method with name ' + method + ' does not exists for jQuery.treegridExt');
            return this;
        }
    };

    /*public functions*/
    var methods = {
        initExtTree: function (options) {
            //获取配置信息
            var settings = $.extend({}, this.treegrid.defaults, this.treegridExt.defaults, options || {});
            var $this = $(this);
            //Code
            //设置控件容器
            $this.treegridExt('setTreeContainer', $this);
            //保存设置
            $this.treegridExt('setSettings', settings);
            if (!settings.url) {
                //载入数据
                var data = $this.treegridExt('loadData',settings);
                if (data && data.length > 0) {
                    //生成表格
                    $this.treegridExt('renderTable',data);
                }
                //初始化header
                settings.getTableHeader.apply(this,[$this]).treegridExt('initHeader',settings);
                //初始化结点
                settings.getRootNodes.apply(this, [$this]).treegridExt('initNode', settings);
                //生成树
                $this.treegridExt('getRootNodes').treegridExt('render');
                //默认展开状态
                if (!settings.expandAll) {
                    $this.treegridExt('collapseAll');
                }
            } else {
                $this.treegridExt('loadData',settings);
            }
            return $this;
        },
        dispose: function (options) {
            return $(this).each(function () {
                var $this = $(this);
                $this.treegridExt('delState');
                $this.treegridExt('delSettings');
                $this.treegridExt('delTreeContainer');
            });
        },
        val: function (options) {
            //获取选择器中第一个元素的html
            return this.eq(0).html();
        },

        //##Beigin自定义初始化方法
        /*init*/
        initHeader: function (settings) {
            return this.each(function () {
                var $this = $(this);
                $this.treegridExt('setTreeContainer', settings.getTreeGridContainer.apply(this));
                $this.treegridExt('initCheckAll').treegridExt('initDelAll');
                if ($this.treegridExt('getSetting', 'showOperation')) {
                    var cell = $('<th></th>');
                    cell.text('操作');
                    $this.append(cell);
                }
                return $this;
            });
        },
        initNode: function (settings) {
            return this.each(function () {
                var $this = $(this);
                $this.treegridExt('setTreeContainer', settings.getTreeGridContainer.apply(this));
                $this.treegridExt('initExpander').treegridExt('initIndent').treegridExt('initCheck').treegridExt('initOperation').treegridExt('initEvents').treegridExt('initState').treegridExt('initChangeEvent').treegridExt('initSettingsEvents');
                $this.treegridExt('getChildNodes').treegridExt('initNode', settings);
            });
        },
        initCheckAll: function () {
            var $this = $(this);
            if ($this.treegridExt('getSetting', 'showCheck') && $this.treegridExt('getSetting', 'showCheckAll')) {
                $this.addClass('treegridExt-checkboxAll');
                var cell = $('<th></th>');
                var tpl = $this.treegridExt('getSetting', 'checkTemplate');
                var checks = $this.treegridExt('getSetting', 'getCheckbox').apply(this);
                if (checks && checks.length > 0) {
                    checks.remove();
                }
                $this.prepend(cell.append(tpl));
                $this.treegridExt('getSetting', 'getCheckbox').apply(this).click(function () { $this.treegridExt('toggleCheckAll'); });
            }
            return $this;
        },
        initDelAll: function () {
            var $this = $(this);
            if ($this.treegridExt('getSetting', 'showCheckAll') && $this.treegridExt('getSetting', 'showDelAll')) {
                var cell = $this.find('th').get(0);
                var delTpl = $this.treegridExt('getSetting', 'delAllTemplate');
                var checks = $this.treegridExt('getSetting', 'getDelAll').apply(this);
                if (checks && checks.length > 0) {
                    checks.remove();
                }
                $(cell).append(delTpl);
                $this.treegridExt('getSetting', 'getDelAll').apply(this).click(function () { $this.treegridExt('delChecked'); });
            }
            return $this;
        },
        initCheck: function () {
            var $this = $(this);
            if ($this.treegridExt('getSetting', 'showCheck')) {
                var cell = $('<td></td>');
                var tpl = $this.treegridExt('getSetting', 'checkTemplate');
                var checks = $this.treegridExt('getSetting', 'getCheckbox');
                if (checks && checks.length > 0) {
                    checks.remove();
                }
                $this.prepend(cell.append(tpl));
                $this.treegridExt('getSetting', 'getCheckbox').apply(this).click(function () { $this.treegridExt('toggleCheck'); });
            }
            return $this;
        },
        initOperation: function () {
            var $this = $(this);
            if ($this.treegridExt('getSetting', 'showOperation')) {
                var cell = $('<td></td>');
                var tpl = $this.treegridExt('getSetting', 'operationTemplate');
                $this.append(cell.append(tpl));
            }
            return $this;
        },
        initEvents: function () {
            var $this = $(this);
            //Default behavior on check
            $this.on('check', function () {
                var $this = $(this);
                $this.addClass('treegrid-checked');
            });
            //Default behavior on other operations
            return $this.treegrid('initEvents');
        },
        initSettingsEvents: function () {
            var $this = $(this);
            //Save state on check
            $this.on('check', function () {
                var $this = $(this);
                if (typeof ($this.treegridExt('getSetting', 'onCheck')) === "function") {
                    $this.treegridExt('getSetting', 'onCheck').apply($this);
                }
            });
            //Save state on other operation
            return $this.treegrid('initSettingsEvents');
        },
        //##end自定义的初始化方法

        //##Begin原组件的方法的封装
        /*init*/
        initExpander: function () {
            return $(this).treegrid('initExpander');
        },
        initIndent: function () {
            return $(this).treegrid('initIndent');
        },
        initState: function () {
            return $(this).treegrid('initState');
        },
        initChangeEvent: function () {
            var $this = $(this);
            //Save state on chagne
            $this.on('change', function () {
                var $this = $(this);
                $this.treegridExt('render');
                if ($this.treegridExt('getSetting', 'saveState')) {
                    $this.treegridExt('saveState');
                }
            });
            return $this;
        },
        /*init-event*/
        /*base*/
        getTreeContainer: function () {
            return $(this).treegrid('getTreeContainer');
        },
        setTreeContainer: function (container) {
            //扩展插件和原插件使用相同的存储空间
            return $(this).treegrid('setTreeContainer', container);
        },
        getSetting: function (name) {
            return $(this).treegrid('getSetting',name);
        },
        setSettings: function (settings) {
            return $(this).treegrid('setSettings',settings);
        },
        restoreState: function () {
            return $(this).treegrid('restoreState');
        },
        saveState: function () {
            return $(this).treegrid('saveState');
        },
        /*node*/
        getAllNodes: function () {
            return $(this).treegrid('getAllNodes');
        },
        getParentNode: function () {
            return $(this).treegrid('getParentNode');
        },
        getChildNodes: function () {
            return $(this).treegrid('getChildNodes');
        },
        /*fake-id*/
        getNodeId: function () {
            return $(this).treegrid('getNodeId');
        },
        getParentNodeId: function () {
            return $(this).treegrid('getParentNodeId');
        },
        getDepth: function () {
            return $(this).treegrid('getDepth');
        },
        /*bool*/
        isRoot: function () {
            return $(this).treegrid('isRoot');
        },
        isNode: function () {
            return $(this).treegrid('isNode');
        },
        isLeaf: function () {
            return $(this).treegrid('isLeaf');
        },
        isFirst: function () {
            return $(this).treegrid('isFirst');
        },
        isLast: function () {
            return $(this).treegrid('isLast');
        },
        isExpanded: function () {
            return $(this).treegrid('isExpanded');
        },
        isCollapsed: function () {
            return $(this).treegrid('isCollapsed');
        },
        isFirstInit: function () {
            return $(this).treegrid('isFirstInit');
        },
        isOneOfParentsCollapsed: function () {
            return $(this).treegrid('isOneOfParentsCollapsed');
        },
        /*verb*/
        expand: function () {
            return $(this).treegrid('expand');
        },
        expandAll: function () {
            return $(this).treegrid('expandAll');
        },
        expandRecursive: function () {
            return $(this).treegrid('expandRecursive');
        },
        collapse: function () {
            return $(this).treegrid('collapse');
        },
        collapseAll: function () {
            return $(this).treegrid('collapseAll');
        },
        collapseRecursive: function () {
            return $(this).treegrid('collapseRecursive');
        },
        /*
        toggle: function () {
            return $(this).treegrid('toggle').apply(this);
        },*/
        //##End原组件方法的封装

        //自定义的方法........
        delState: function () {
            $.cookie($this.treegridExt('getSetting', 'saveStateName'), null);
        },
        delSettings: function () {
            if (!$(this).treegridExt('getTreeContainer'))
                return;
            $this.treegridExt('getTreeContainer').removeData('settings');
        },
        delTreeContainer: function () {
            if (!$(this).treegridExt('getTreeContainer'))
                return;
            return $(this).removeData('treegrid', container);
        },
        check: function (isCheck) {
            var $this = $(this);
            if (isCheck) {
                $this.treegridExt('getSetting', 'getCheckbox').apply(this).prop('checked',true);
                $this.addClass('treegridExt-checked');
                if ($this.treegrid('isCollapsed')) {
                    $this.treegrid('expand');
                }
            } else {
                $this.treegridExt('getSetting', 'getCheckbox').apply(this).prop('checked', false);
                $this.removeClass('treegridExt-checked');
            }
            return $this;
        },
        checkDownRecursive: function (isCheck) {
            //return $(this).each(function () {
            var $this = $(this);
            $this.treegridExt('check', isCheck);
            if (!$this.treegridExt('isLeaf')) {
                $this.treegridExt('getChildNodes').treegridExt('checkDownRecursive', isCheck);
            }
            return $this;
            //});
        },
        checkUpRecursive: function (isCheck) {
            var parentNode = $(this).treegridExt('getParentNode');
            if (parentNode) {
                var tag = true;
                $.each(parentNode.treegridExt('getChildNodes'), function () {
                    var $this = $(this);
                    //异或: T^T(false)、T^F(true)、F^T(true)、F^F(false), 全选或全不选(true), 否则为false.
                    if (isCheck ^ $this.treegridExt('isChecked')) {
                        tag = false;
                        return false;
                    }
                });
                //与非: !(T^T)(false)、!(T^F)(true)、!(F^T)(true)、F^F(true)
                if (!(isCheck || tag)) {
                    //选的不全
                    parentNode.treegridExt('check', true);
                    parentNode.addClass('treegridExt-partialChecked');
                } else if (isCheck) {
                    //全选
                    parentNode.treegridExt('check', true);
                    parentNode.removeClass('treegridExt-partialChecked');
                } else {
                    //全不选
                    parentNode.treegridExt('check', false);
                    parentNode.removeClass('treegridExt-partialChecked');
                }
                if (!parentNode.treegridExt('getParentNode')) {
                    parentNode.treegridExt('checkUpRecursive', isCheck);
                }
            } else {
                //rootNodes
                var $this = $(this);
                var checkCount = 0;
                var rootNodes = $this.treegridExt('getRootNodes');
                $.each(rootNodes, function (index, item) {
                    var $item = $(item);
                    if($item.treegridExt('isChecked')){
                        checkCount++;
                    }
                    if ($item.treegridExt('isPartialChecked')) {
                        checkCount--;
                    }
                });
                var chkTr = $this.treegridExt('getSetting','getTableHeader').apply(this,[$($this.treegridExt('getTreeContainer'))]);
                if (checkCount < rootNodes.length) {
                    //全不选,部分选
                    if (isCheck || checkCount > 0) {
                        //chkTr.find('input[type="checkbox"]').prop('checked',true);
                        chkTr.treegridExt('getSetting', 'getCheckbox').apply($(chkTr)).prop('checked', true);
                        chkTr.removeClass('treegridExt-checkedAll').addClass('treegridExt-partialChecked');
                    } else {
                        chkTr.treegridExt('getSetting', 'getCheckbox').apply($(chkTr)).prop('checked', false);
                        chkTr.removeClass('treegridExt-checkedAll').removeClass('treegridExt-partialChecked');
                    }
                } else {
                    //全选
                    chkTr.treegridExt('getSetting', 'getCheckbox').apply($(chkTr)).prop('checked', true);
                    chkTr.removeClass('treegridExt-partialChecked').addClass('treegridExt-checkedAll');
                } 

            }
        },
        toggleCheck: function () {
            var $this = $(this);
            var isCheck = $this.treegridExt('isChecked');
            $this.treegridExt('check', !isCheck);
            $this.treegridExt('checkDownRecursive', !isCheck);
            $this.treegridExt('checkUpRecursive', !isCheck);
            return $this;
        },
        toggleCheckAll: function () {
            var $this = $(this);
            var chkAll = $this.treegridExt('getSetting', 'getCheckbox').apply(this);
            var isCheck = $this.treegridExt('isCheckedAll');
            if (isCheck) {
                chkAll.prop('checked', false);
                $this.removeClass('treegridExt-checkedAll');
            } else {
                chkAll.prop('checked', true);
                $this.addClass('treegridExt-checkedAll');
            }
            $.each($this.treegridExt('getRootNodes'), function (index, item) {
                $(item).treegridExt('checkDownRecursive', !isCheck);
            });
            return $this;
        },
        delChecked: function () {
            alert('这是删除按钮啦!');
        },
        getRootNodes: function () {
            return $(this).treegrid('getRootNodes');
        },
        /*bool*/
        isChecked: function () {
            return $(this).hasClass('treegridExt-checked');
        },
        isPartialChecked: function(){
            return $(this).hasClass('treegridExt-partialChecked');
        },
        isCheckedAll: function () {
            return $(this).hasClass('treegridExt-checkedAll');
        },
        isDelAll: function () {
            return $(this).hasClass('treegridExt-delAll');
        },
        /*loadData*/
        loadData: function (settings) {
            var $this = $(this);
            var defData = settings.data;
            var url = settings.url;
            if (defData && defData.length >0) {
                return defData;
            } else if (url) {
                $.ajax({
                    type: settings.type,
                    url: url,
                    data: settings.data,
                    dataType: "JSON",
                    success: function (data, textStatus, jqXHR) {
                        //debugger;
                        if (data && data.length > 0) {
                            //生成表格
                            $this.treegridExt('renderTable',data);
                        }
                        //初始化Header
                        settings.getTableHeader.apply(this, [$this]).treegridExt('initHeader', settings);
                        //初始化结点
                        settings.getRootNodes.apply(this, [$this]).treegridExt('initNode', settings);
                        //生成树
                        $this.treegridExt('getRootNodes').treegridExt('render');
                        //默认展开状态
                        if (!settings.expandAll) {
                            $this.treegridExt('collapseAll');
                        }
                    }
                });
                return $this;
            }
        },
        /*render*/
        render: function () {
            return $(this).each(function () {
                var $this = $(this);
                //if parent colapsed we hidden
                if ($this.treegrid('isOneOfParentsCollapsed')) {
                    $this.hide();
                } else {
                    $this.show();
                }
                if (!$this.treegrid('isLeaf')) {
                    $this.treegrid('renderExpander');
                    $this.treegrid('getChildNodes').treegrid('render');
                }
            });
        },
        renderExpander: function () {
            return $(this).each(function () {
                var $this = $(this);
                var expander = $this.treegrid('getSetting', 'getExpander').apply(this);
                if (expander) {

                    if (!$this.treegrid('isCollapsed')) {
                        expander.removeClass($this.treegrid('getSetting', 'expanderCollapsedClass'));
                        expander.addClass($this.treegrid('getSetting', 'expanderExpandedClass'));
                    } else {
                        expander.removeClass($this.treegrid('getSetting', 'expanderExpandedClass'));
                        expander.addClass($this.treegrid('getSetting', 'expanderCollapsedClass'));
                    }
                } else {
                    $this.treegrid('initExpander');
                    $this.treegrid('renderExpander');
                }
            });
        },
        renderTable: function (data) {
            var $this = $(this);
            //debugger;
            //设置表样式
            $this.addClass('table');
            if ($this.treegridExt('getSetting', 'striped')) {
                $this.addClass('table-striped');
            }
            if ($this.treegridExt('getSetting', 'bordered')) {
                $this.addClass('table-bordered');
            }
            //生成表头
            $this.treegridExt('renderHead');
            //生成表体
            $this.treegridExt('renderBody', data);
            return $this;
        },
        renderHead: function () {
            var $this = $(this);
            //debugger;
            var thead = $('<thead></thead>')
            var thr = $('<tr></tr>');
            thr.addClass('treegridExt-header');
            $.each($this.treegridExt('getSetting', 'columns'), function (i, item) {
                var th = $('<th></th>');
                th.text(item.title);
                thr.append(th);
            });
            thr.appendTo(thead);
            return $this.append(thead);
        },
        renderBody: function (data) {
            var $this = $(this);
            var tbody = $('<tbody></tbody>');
            var isTreedData = $this.treegridExt('getSetting', 'treedData');
            var parentCol = $this.treegridExt('getSetting', 'parentColumn');
            var sortCol = $this.treegridExt('getSetting', 'sortColumn');
            var cols = $this.treegridExt('getSetting', 'columns');
            var rootNodes = getRootNodesFromData(data, isTreedData, parentCol, sortCol);
            if (rootNodes && rootNodes.length > 0) {
                $.each(rootNodes, function (i, item) {
                    var tr = $('<tr></tr>');
                    tr.addClass('treegrid-' + (++nodeCount));
                    $.each(cols, function (index, column) {
                        var td = $('<td></td>');
                        td.text(item[column.field]);
                        tr.append(td);
                    });
                    tbody.append(tr);
                    if ($this.treegridExt('getSetting', 'treedData')) {
                        var childCol = $this.treegridExt('getSetting', 'childrenColumn');
                        $this.treegridExt('renderTreedDataTr', item, nodeCount, cols, childCol, sortCol, tbody);
                    } else {
                        var idCol = $this.treegridExt('getSetting', 'idColumn');
                        $this.treegridExt('renderListDataTr', data, item, nodeCount, cols, idCol, parentCol, sortCol, tbody);
                    }
                });
            }
            return $this.append(tbody);
        },
        renderListDataTr: function (data, parentData, parentIndex, columns, idColumn, parentColumn, sortColumn, tbody) {
            var nodes = getListChildNodesFromData(data, parentData, idColumn, parentColumn, sortColumn);
            if (nodes && nodes.length > 0) {
                $.each(nodes, function (i, item) {
                    var tr = $('<tr></tr>');
                    var nowParentIndex = ++nodeCount;
                    tr.addClass('treegrid-' + nowParentIndex);
                    tr.addClass('treegrid-parent-' + parentIndex);
                    $.each(columns, function (index, column) {
                        var td = $('<td></td>');
                        td.text(item[column.field]);
                        tr.append(td);
                    });
                    tbody.append(tr);
                    $(this).treegridExt('renderListDataTr', data, item, nowParentIndex, columns, idColumn, parentColumn, sortColumn, tbody);
                });
            }
        },
        renderTreedDataTr: function (parentNode, parentIndex, columns, childColumn, sortColumn, tbody) {
            var nodes = getTreeChildNodesFromdata(parentNode, childColumn, sortColumn);
            if (nodes && nodes.length > 0) {
                $each(nodes, function (i, item) {
                    var tr = $('<tr></tr>');
                    var nowParentIndex = ++nodeCount;
                    tr.addClass('treegrid-' + nowParentIndex);
                    tr.addClass('treegrid-parent-' + parentIndex);
                    $each(columns, function (index, column) {
                        var td = $('<td></td>');
                        td.text(item[column.field]);
                        tr.append(td);
                    });
                    tbody.append(tr);
                    $(this).treegridExt('renderTreedDataTr', item, nowParentIndex, columns, childColumn, sortColumn, tbody);
                });
            }
        },
    };

    /*default values*/
    $.fn.treegridExt.defaults = {
        idColumn: 'Id',
        parentColumn: 'ParentId',
        treeColumn: 0,                                                  //在哪一列上显示展开按钮
        treedData: false,                                               //是否树化的数据
        childrenColumn: null,                                           //含有孩子结点的属性, 非树化结构直接值为null
        data: [],                                                       //构造table的数据集合
        type: "GET",                                                    //请求数据的ajax类型
        url: null,                                                      //请求数据的ajax的url
        ajaxParams: {},                                                 //请求数据的ajax的data属性
        sortColumn: null,                                               //按照哪一列进行排序
        striped: false,                                                 //是否各行渐变色
        bordered: false,                                                //是否显示边框
        expandAll: true,                                                //是否全部展开
        showCheck: true,                                                //是否显示选择列
        showCheckAll: true,                                             //是否选择全选列
        showDelAll: true,                                               //显示全删按钮
        showOperation: true,                                            //是否显示操作列
        columns: [],                                                    //列名列值
        checkTemplate: '<input type="checkbox" >',
        delAllTemplate: '<input reset radius2" type="reset" value="删除" onsubmit="return false"><input type="hidden" >',
        operationTemplate: '<a href class="btn btn4 btn_pencil" data-toggle="tooltip" style="margin-left:5%" data-trigger="hover" title="编辑" ></a><a href class="btn btn4 btn_trash" style="margin-left:5%;" data-toggle="tooltip" data-trigger="hover" title="删除"></a>',
        expanderExpandedClass: 'glyphicon glyphicon-chevron-down',      //展开的按钮的图标
        expanderCollapsedClass: 'glyphicon glyphicon-chevron-right',     //缩起的按钮的图标
        getCheckbox: function () {
            return $(this).find('input[type="checkbox"]');
        },
        getDelAll: function () {
            return $(this).find('input[type="reset"]');
        },
        getTableHeader: function (treegridContainer) {
            var result = $.grep(treegridContainer.find('tr'), function (element) {
                var classNames = $(element).attr('class');
                var templateClass = /treegridExt-header/;
                return templateClass.test(classNames);
            });
            return $(result);
        },
        /*Event*/
        onCollpase: null,
        onExpand: null,
        onChange: null,
        onCheck: null

    };
})(jQuery);

//jquery.treegridExt.css

.treegridExt-checkbox {}
.treegridExt-checkboxAll {}
.treegridExt-checked {background-color:transparent;}
.treegridExt-checkedAll { background-color:transparent;}
.treegridExt-partialChecked td { background-color: red; }
.treegrid-header {}

//前台HTMl

List.cshtml片段

   <div class="contenttitle2">
        <h3>查询结果</h3>
    </div>
    <form method="post" action="">
        <table cellpadding="0" cellspacing="0" border="0" class="stdtable resultBox" id="dynTblList">
            <colgroup>
                <col class="con1" style="width: 5%" />
                <col class="con0" style="width: 25%"/>
                <col class="con1" style="width: 15%"/>
                <col class="con0" style="width: 10%"/>
                <col class="con1" style="width: 15%"/>
                <col class="con0" style="width: 15%"/>
                <col class="con1"/>
            </colgroup>
        </table>
    </form>
</div>

@section scripts{
    <script type="text/javascript">
        $(document).ready(function () {
            $('#dynTblList').treegridExt({
                idColumn: 'DictionaryId',
                parentColumn: 'DictionaryParentId',
                treeColumn: 0,                                  //在哪一列上显示展开按钮
                type: 'GET',                                    //请求数据的ajax类型
                url: '/Dictionary/GetSearchData',               //请求数据的ajax的url
                ajaxParams: {},                                 //请求数据的ajax的data属性
                sortColumn: 'DictionarySeq',
                striped: true,                                  //是否各行渐变色
                bordered: true,                                 //是否显示边框
                expandAll: false,                               //是否全部展开
                columns: [
                    {
                        title: '字典项值',
                        field: 'DictionaryValue'
                    },
                    {
                        title: '字典项键',
                        field: 'DictionaryKey'
                    },
                    {
                        title: '字典项序号',
                        field: 'DictionarySeq'
                    },
                    {
                        title: '备注1',
                        field: 'DictionaryResrv1'
                    },
                    {
                        title: '备注2',
                        field: 'DictionaryResrv2'
                    }
                ]
            });
        });
    </script>
}

相关图片, 就从treegrid的源码包里面找吧...

最终效果如下: