easyui之 datagrid 多条件搜索、查询

<script type="text/javascript">

        $(function() {
            $("#dg").datagrid({
                url:'',
                singleSelect:true,
                pagination:true,
                pageSize: 15,
                pageList: [5, 10, 15, 20, 30, 50, 80, 200],
                queryParams: form2Json("searchform"),　　//关键之处
                //锁定列
            frozenColumns: [[{
                field:'ck', checkbox:true
            },
        ]],
            columns: [[{
                field:"be_id",
                title:"专家ID",
                hidden:true
            }, {
                field:"be_name",
                title:"专家姓名",
                align:'left',
                width: 100
            }, {
                field:"be_post",
                title:"专家职称",
                align:'left',
                width: 200

            }, {
                field:"dt_id",
                title:"所属科室",
                align:'center',
                width: 100,
                formatter:function (value, row) {
                    returnformatterDepartment(value)
                }
            }, {
                field:"be_intro",
                title:"专家简介",
                align:'left',
                width: 450
            }, {
                field:"be_order",
                title:"排序ID",
                align:'center',
                width: 100
            }]],
            })//datagrid


          $("#submit_search").linkbutton({ iconCls:'icon-search', plain:true })
            .click(function() {
                $('#dg').datagrid({ queryParams: form2Json("searchform") });   //点击搜索
            });

        })

        //将表单数据转为json
        functionform2Json(id) {

            vararr = $("#"+ id).serializeArray()
            varjsonStr = "";

            jsonStr +='{';
            for(vari = 0; i < arr.length; i++) {
                jsonStr +='"' + arr[i].name + '":"' + arr[i].value + '",'
            }
            jsonStr = jsonStr.substring(0, (jsonStr.length - 1));
            jsonStr +='}'

            varjson = JSON.parse(jsonStr)
            returnjson
        }

    </script>

　　

<formname="searchform" method="post" action="" id ="searchform">
    <tdwidth="70" height="30"><strong>专家检索：</strong></td>
    <tdheight="30">
        <inputtype="text" name="keyword" size=20 >
        <selectname="search_type" id="search_type" >
            <optionvalue="-1">请选择搜索类型</option>
            <optionvalue="be_name" >按专家姓名</option>
            <optionvalue="be_intro">按专家简介</option>
        </select>
        <selectname="search_dept" id="search_dept">
            <optionvalue="-1">请选择所属科室</option>
        </select>
        <aid="submit_search">搜索</a>
    </td>
  </form>
  <tableid="dg"></table>

　　queryParams: form2Json("searchform")  是关键，这个属性是专门用来查询的

　　为搜索按钮绑定click事件

       $("#submit_search").click(function () {
                $('#dg').datagrid({ queryParams: form2Json("searchform") });   //点击搜索
            });