easyui 双击datagrid编辑

$('#domainGrid').datagrid({
    onDblClickCell: function(index,field,value){
        $(this).datagrid('beginEdit', index);
        var ed = $(this).datagrid('getEditor', {index:index,field:field});
        $(ed.target).focus();
    }
});

$(document).ready(function (){
    change();
});

function change(){
$("#domainGrid").datagrid({
    columns:[[
        {field:'domain_name',width:'80%',editor:'text',title:'领域标识'},
        {field:'',width:'15%',title:'操作', formatter:function(value,row,index){
                if (row.editing){
                var a="'"+row.domain_name+"'";
                var s = '','+row.id+','+a+')">保存 ';
                var c = '')">取消';
                return s+c;
                }else {
                //var e = '编辑 ';
                var d = '','+row.id+')">删除';
                return d;
                }
            }
        }
    ]],
    onBeforeEdit:function(index,row){
    row.editing = true;
    $('#domainGrid').datagrid('refreshRow', index);
},
onAfterEdit:function(index,row,changes){ //当有endEdit时才触发onAfterEdit;
    //alert("onafteredit:"+row.id);
    //alert(changes.domain_name);
    var domainBean={id:row.id,domain_name:changes.domain_name};
    var entity=JSON.stringify(domainBean);
    $.post('/system/saveDomain',{entity:entity},function(data){
    $('#domainGrid').datagrid('reload');
    $.messager.alert('提示',data.message);
    // $('#systemForm').form('clear');
});

row.editing = false;
$('#domainGrid').datagrid('refreshRow', index);

},
onCancelEdit:function(index,row){
    row.editing = false;
    $('#domainGrid').datagrid('refreshRow', index);
}
})
}


function getRowIndex(target){
    var tr = $(target).closest('tr.datagrid-row');
    change();
    return parseInt(tr.attr('datagrid-row-index'));
}


function saverow(index,mid,mvalue){
    $('#domainGrid').datagrid("endEdit", index);
    $('#domainGrid').datagrid('endEdit', getRowIndex(index));
}

function cancelrow(target){
$('#domainGrid').datagrid('cancelEdit', getRowIndex(target));
}

function deleterow(target,mid){
    $.messager.confirm('提示','确定删除当前记录？',function(r){
    if(r){
        $.get('/system/deleteDomain/'+mid,function(data){
        $('#domainGrid').datagrid('reload');
        $.messager.alert('提示',data.message);
        });
    }
});

}