ery-easyui 中表格的行编辑功能

datagrid现在具有行编辑能力了，使用时只须在columns中为需要编辑的列添加一个editor属性，编辑保存时同时具有数据校验能力。

看一个例子效果图：

具体实现代码如下：

<table id="tt"></table>$(‘#tt‘).datagrid({    title:‘Editable DataGrid‘,    iconCls:‘icon-edit‘,    width:660,    height:250,    singleSelect:true,    idField:‘itemid‘,    url:‘datagrid_data.json‘,    columns:[[        {field:‘itemid‘,title:‘Item ID‘,width:60},        {field:‘productid‘,title:‘Product‘,width:100,            formatter:function(value){                for(var i=0; i<products.length; i++){                    if (products[i].productid == value) return products[i].name;                }                return value;            },            editor:{                type:‘combobox‘,                options:{                    valueField:‘productid‘,                    textField:‘name‘,                    data:products,                    required:true                }            }        },        {field:‘listprice‘,title:‘List Price‘,width:80,align:‘right‘,editor:{type:‘numberbox‘,options:{precision:1}}},        {field:‘unitcost‘,title:‘Unit Cost‘,width:80,align:‘right‘,editor:‘numberbox‘},        {field:‘attr1‘,title:‘Attribute‘,width:150,editor:‘text‘},        {field:‘status‘,title:‘Status‘,width:50,align:‘center‘,            editor:{                type:‘checkbox‘,                options:{                    on: ‘P‘,                    off: ‘‘                }            }        },        {field:‘action‘,title:‘Action‘,width:70,align:‘center‘,            formatter:function(value,row,index){                if (row.editing){                    var s = ‘<a href="http://www.mamicode.com/#" onclick="saverow(‘+index+‘)">Save</a> ‘;                    var c = ‘<a href="http://www.mamicode.com/#" onclick="cancelrow(‘+index+‘)">Cancel</a>‘;                    return s+c;                } else {                    var e = ‘<a href="http://www.mamicode.com/#" onclick="editrow(‘+index+‘)">Edit</a> ‘;                    var d = ‘<a href="http://www.mamicode.com/#" onclick="deleterow(‘+index+‘)">Delete</a>‘;                    return e+d;                }            }        }    ]],    onBeforeEdit:function(index,row){        row.editing = true;        $(‘#tt‘).datagrid(‘refreshRow‘, index);    },    onAfterEdit:function(index,row){        row.editing = false;        $(‘#tt‘).datagrid(‘refreshRow‘, index);    },    onCancelEdit:function(index,row){        row.editing = false;        $(‘#tt‘).datagrid(‘refreshRow‘, index);    }});

function editrow(index){    $(‘#tt‘).datagrid(‘beginEdit‘, index);}function deleterow(index){    $.messager.confirm(‘Confirm‘,‘Are you sure?‘,function(r){        if (r){            $(‘#tt‘).datagrid(‘deleteRow‘, index);        }    });}function saverow(index){    $(‘#tt‘).datagrid(‘endEdit‘, index);}function cancelrow(index){    $(‘#tt‘).datagrid(‘cancelEdit‘, index);}