yii ajax 更新数据

 'columns'=>array(
        'id',
        array('name' => 'platform', 'value' => '$data->platform'),
        array('name' => 'version', 'value' => '$data->version'),
        array('name' => 'build', 'value' => '$data->build'),
        array('name' => 'uptime', 'value' => '$data->uptime'),
		array(
			'name' => 'timelimit',
			'type' => 'raw',
			//输入框
			'value' => 'CHtml::textField("timelimit",$data->timelimit,array(
				"size"  => 25, //边框大小
				"class" => "txt_timelimit", //设置样式
				"id"    => "$data->id", //当前数据id
				"onchange"  =>  "checkedField(this.value,$data->id,1)",
			))'
		),）

//更新
	function checkedField(val,id,flag){
		updateApp(id,val,flag);
	}

function updateApp(id,val,flag)
	{
		if(confirm("确认修改？")){
			$.ajax({
				url	:	'UpdateApp',
				type	:	'POST',
				data	:	{"id":id,"val":val,"flag":flag},
				dataType	:	'json',
				success:function (json) {
					//成功获得的也是json对象
					if(json.flag){
						alert("修改成功")
						$(this).val(json.val);
						window.location.reload();
					}
				}
			})
		}
	}

		array(
			'name' => 'isblock',
			'type' => 'raw',
			//输入框
				'value' => 'CHtml::checkBox("isblock",$data->isblock,array(
				"id"    => "$data->id", //当前数据id
				"value" => "$data->isblock",
				"onchange"  =>  "check_isblock(this.checked,$data->id,3)",
			))'
		),

//checkbox 默认选中事件
	$(document).ready(function () {
		var checkboxs = document.getElementsByName("isblock");
		for (var i=0;i<checkboxs.length;i++) {
			var val = checkboxs[i].value;
			var e=checkboxs[i];
			if(val=='Y'){
				e.checked= true;
			}else{
				e.checked=false;
			}
		}
	});

	function check_isblock(ischeck,id,flag) {
		var val = ischeck?'Y':'N';
//		updateApp(id,val,flag);
	}