easyUI中datagrid 将 text 设为不可编辑,该怎么处理

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Row Editing DataGrid - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/demo/demo.css">
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery-1.8.0.min.js"></script>
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery.easyui.min.js"></script>
</head>
<body>
<h2>Row Editing DataGrid</h2>
<div class="demo-info">
<div class="demo-tip icon-tip"></div>
<div>Click the row to start editing.</div>
</div>
<div style="margin:10px 0;"></div>

<script>
var data = {"total":28,"rows":[
{"productid":"FI-SW-01","productname":"Koi","unitcost":10.00,"status":"P","listprice":36.50,"attr1":"Large","itemid":"EST-1"},
{"productid":"K9-DL-01","productname":"Dalmation","unitcost":12.00,"status":"P","listprice":18.50,"attr1":"Spotted Adult Female","itemid":"EST-10"},
{"productid":"RP-SN-01","productname":"Rattlesnake","unitcost":12.00,"status":"P","listprice":38.50,"attr1":"Venomless","itemid":"EST-11"},
{"productid":"RP-SN-01","productname":"Rattlesnake","unitcost":12.00,"status":"P","listprice":26.50,"attr1":"Rattleless","itemid":"EST-12"},
{"productid":"RP-LI-02","productname":"Iguana","unitcost":12.00,"status":"P","listprice":35.50,"attr1":"Green Adult","itemid":"EST-13"},
{"productid":"FL-DSH-01","productname":"Manx","unitcost":12.00,"status":"P","listprice":158.50,"attr1":"Tailless","itemid":"EST-14"},
{"productid":"FL-DSH-01","productname":"Manx","unitcost":12.00,"status":"P","listprice":83.50,"attr1":"With tail","itemid":"EST-15"},
{"productid":"FL-DLH-02","productname":"Persian","unitcost":12.00,"status":"P","listprice":23.50,"attr1":"Adult Female","itemid":"EST-16"},
{"productid":"FL-DLH-02","productname":"Persian","unitcost":12.00,"status":"P","listprice":89.50,"attr1":"Adult Male","itemid":"EST-17"},
{"productid":"AV-CB-01","productname":"Amazon Parrot","unitcost":92.00,"status":"P","listprice":63.50,"attr1":"Adult Male","itemid":"EST-18"}
]}
</script> <table id="dg" class="easyui-datagrid" title="Row Editing DataGrid" style="width:700px;height:auto"
data-options="
iconCls: 'icon-edit',
singleSelect: true,
toolbar: '#tb',
data:data,
onClickRow: onClickRow
">
<thead>
<tr>
<th data-options="field:'itemid',width:80">Item ID</th>
<th data-options="field:'productid',width:100,
formatter:function(value,row){
return row.productname;
},
editor:{
type:'combobox',
options:{
valueField:'productid',
textField:'productname',
url:'../datagrid/products.json',
required:true
}
}">Product</th>
<th data-options="field:'listprice',width:80,align:'right',editor:{type:'numberbox',options:{precision:1}}">List Price</th>
<th data-options="field:'unitcost',width:80,align:'right',editor:'numberbox'">Unit Cost</th>
<th data-options="field:'attr1',width:250,editor:'text'">这一列是只读的</th>
<th data-options="field:'status',width:60,align:'center',editor:{type:'checkbox',options:{on:'P',off:''}}">Status</th>
</tr>
</thead>
</table> <div id="tb" style="height:auto">
<a href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-add',plain:true" onclick="append()">Append</a>
<a href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-remove',plain:true" onclick="remove()">Remove</a>
<a href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-save',plain:true" onclick="accept()">Accept</a>
<a href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-undo',plain:true" onclick="reject()">Reject</a>
<a href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-search',plain:true" onclick="getChanges()">GetChanges</a>
</div>

<script type="text/javascript">
var editIndex = undefined;
function endEditing(){
if (editIndex == undefined){return true}
if ($('#dg').datagrid('validateRow', editIndex)){
var ed = $('#dg').datagrid('getEditor', {index:editIndex,field:'productid'});
var productname = $(ed.target).combobox('getText');
$('#dg').datagrid('getRows')[editIndex]['productname'] = productname;
$('#dg').datagrid('endEdit', editIndex);
editIndex = undefined;
return true;
} else {
return false;
}
}
function onClickRow(index){
if (editIndex != index){
if (endEditing()){
$('#dg').datagrid('selectRow', index)
.datagrid('beginEdit', index);
// 得到单元格对象,index指哪一行,field跟定义列的那个一样
var cellEdit = $('#dg').datagrid('getEditor', {index:index,field:'attr1'});
var $input = cellEdit.target; // 得到文本框对象
//$input.val('aaa'); // 设值
$input.prop('readonly',true); // 设值只读 editIndex = index;
} else {
$('#dg').datagrid('selectRow', editIndex);
}
}
}
function append(){
if (endEditing()){
$('#dg').datagrid('appendRow',{status:'P'});
editIndex = $('#dg').datagrid('getRows').length-1;
$('#dg').datagrid('selectRow', editIndex)
.datagrid('beginEdit', editIndex);
}
}
function remove(){
if (editIndex == undefined){return}
$('#dg').datagrid('cancelEdit', editIndex)
.datagrid('deleteRow', editIndex);
editIndex = undefined;
}
function accept(){
if (endEditing()){
$('#dg').datagrid('acceptChanges');
}
}
function reject(){
$('#dg').datagrid('rejectChanges');
editIndex = undefined;
}
function getChanges(){
var rows = $('#dg').datagrid('getChanges');
alert(rows.length+' rows are changed!');
}
</script>
</body>
</html>
</body>
</html>

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easyUI中datagrid 将 text 设为不可编辑,该怎么处理

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