datagrid实现单行的选择、取消

时间：2021-11-07 16:30:56
<html>

<head>

	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

	<meta name="keywords" content="jquery,ui,easy,easyui,web">

	<meta name="description" content="easyui help you build your web page easily!">

	<title>jQuery EasyUI Demo</title>

	<link rel="stylesheet" type="text/css" href="http://www.jeasyui.net/Public/js/easyui/themes/default/easyui.css">

	<link rel="stylesheet" type="text/css" href="http://www.jeasyui.net/Public/js/easyui/themes/icon.css">

	<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.4.min.js"></script>

	<script type="text/javascript" src="http://www.jeasyui.net/Public/js/easyui/jquery.easyui.min.js"></script>

	<script>

		function getSelected(){

			var row = $('#tt').datagrid('getSelected');

			if (row){

				alert('Item ID:'+row.itemid+"\nPrice:"+row.listprice);

			}

		}

		function getSelections(){

			var ids = [];

			var rows = $('#tt').datagrid('getSelections');

			for(var i=0; i<rows.length; i++){

				ids.push(rows[i].itemid);

			}

			alert(ids.join('\n'));

		}

        function upRow(){

            var row = $('#tt').datagrid('getSelected');

            var rowindex = $('#tt').datagrid('getRowIndex',row);

            //alert(rowindex);

            if(rowindex === 0) {return; }

            $('#tt').datagrid('insertRow',{index:rowindex-1,row});

            $('#tt').datagrid('deleteRow',rowindex+1);

        }

        function allRows(){

            var rows = $('#tt').datagrid('getRows');

            alert(rows.length);

            for(var i=0; i<rows.length; i++){

                alert(rows[i].itemid);

            }

        }

        //实现选择单行，取消单行

        $(function(){

            $("#tt").datagrid({

                onBeforeSelect: function(index,row){

                    var row =$('#tt').datagrid('getSelected');

                    var curRowindex = $('#tt').datagrid('getRowIndex',row);

                    alert("当前selected row =" + curRowindex);

                    if(curRowindex != index) {return true;}

                    else{ $('#tt').datagrid('unselectRow',index); return false;}

                }

            });

        });

	</script>

</head>

<body>

	<h1>DataGrid</h1>

	<div style="margin-bottom:20px">

		<a href="#" onclick="getSelected()">GetSelected</a>

		<a href="#" onclick="getSelections()">GetSelections</a>

        <a href="#" onclick="upRow()">upRow</a>

        <a href="#" onclick="allRows()">all rows</a>

	</div>

	<table id="tt" class="easyui-datagrid" style="width:600px;height:250px"

			url="data/datagrid_data.json"

            data-options="singleSelect:true"

			title="Load Data" iconCls="icon-save" fitColumns="true">

		<thead>

			<tr>

				<th field="itemid" width="80">Item ID</th>

				<th field="productid" width="80">Product ID</th>

				<th field="listprice" width="80" align="right">List Price</th>

				<th field="unitcost" width="80" align="right">Unit Cost</th>

				<th field="attr1" width="150">Attribute</th>

				<th field="status" width="60" align="center">Stauts</th>

			</tr>

		</thead>

	</table>

</body>

</html>

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