Ajax---删除信息

服务端：

    private MyDBDataContext _Context = new MyDBDataContext();
    public void ProcessRequest (HttpContext context) {
        
        string s = "";
        //获取要删除的主键值
        var code = context.Request["code"];
        
        //接收数据，执行删除
        var query = _Context.Car.Where(p=>p.Code == code);//找出要删除的项
        if (query.Count() > 0)
        {
            Car data = query.First();
            _Context.Car.DeleteOnSubmit(data);
            _Context.SubmitChanges();

            s = "true";
        }

        else
        {
            s = "false";
        }
        
        //返回XML
        context.Response.Write("<?xml version = '1.0'?><ok>"+s+"</ok>");
        context.Response.End();

客户端：

    <script src="Script/jquery-1.7.1.min.js"></script>
    <script language="javascript">
        $(document).ready(function () {
            $(".del").click(function () { 
                var key = $(this).attr("delete");//获得要删除的主键
                var tr = $(this).parents(".trcar");//每个删除按钮所在的tr

                $.ajax({
                    url: "Ajax/Edit.ashx",
                    data: { code: key },
                    type: "POST",
                    dataType: "XML",
                    success: function (data) {
                        //解析
                        var ret = $(data).find("ok").text();
                        if (ret == "true" || ret == "True") {
                            $(tr).remove();
                        }
                    }//success
                });//ajax
            });//click
        });//ready
    </script>

<a href="#" class="del" delete="<%#Eval("Code") %>">删除</a>