服务器端控件ajax请求

//获取服务器端控件
$("#<%=txtTo.ClientID%>")或 $("[id$='txtTo']")

//aspx调用ajax
  $.ajax({
                url: ("Demo.aspx?timestamp={0}").format(new Date().getTime()),
                type: 'POST',
                dataType: 'json',
                timeout: 10000,
                data: {
                    action: "GetUserByPhone",
                    phoneNumber: phone.val()
                },
                success: function (result) {
                    if (result.mes == "1") {
                        $("#<%=txtMemberName.ClientID%>").val(result.strMemberName);
                    }
                    else {

                        if (confirm("<%=Resources.Admin.Tip_Inform_MobilePhone_Undefined_QuickRegistration %>")) {
                            location.href = 'FastRegistration.aspx?NodeID=1029&phone=' + phone.val();
                        }
                    }
                    $("#<%=hidUserId.ClientID%>").val(result.strUserId);
                },
                error: function () {
                    $("#<%=txtMemberName.ClientID%>").val("");
                    $("#<%=hidUserId.ClientID%>").val("");
                }
            });

//Demo.aspx 的page load方法加
 string action = this.Request.Form["Action"];
            if (!String.IsNullOrEmpty(action))
            {
                //发送短信验证码
                this.Response.Clear();
                this.Response.ContentType = "application/json";
                string writeText = string.Empty;
                switch (action)
                {
                    case "GetUserByPhone":
                        writeText = this.GetUserByPhone();
                        break;
                    default:
                        break;
                }
                this.Response.Write(writeText);
                this.Response.End();
            }

//ajax请求调用一般处理程序
                $.ajax({
                    type: "POST",                   //提交方式
                    url: "/Demo/Testing.ashx",   //提交的页面/方法名
                    data: null,                   //参数（如果没有参数：null）
                    success: function (data) {
                        //返回的数据用获取内容    

                    },
                    error: function (err) {

                    }
                });
//刷新session
public class Testing: IHttpHandler, System.Web.SessionState.IRequiresSessionState
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            string set = context.Session["Setting"].ToString();

            if (set == "0")
            {
                context.Session["Setting"] = 1;
            }
            else
            {
                context.Session["Setting"] = 0;
            }
            context.Response.Write("1");
        }

//ajax请求，一般处理程序返回json
                     $.ajax({
                         type: 'POST',
                         async: false,
                         url: "../Handler/CheckPhone.ashx",
                         data: { "mobile": phone.val(), "Action": "addCompensate" },
                         success: function (a) {
                             num = a;
                             if (a == 0) {
                                 $("#txtMobileTip").text('<%=Resources.Admin.Wrong_Undefined_MobilePhone %>');
                                 return false;
                             }
                         }
                     });
public class CheckMobile : IHttpHandler,System.Web.SessionState.IRequiresSessionState
public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            string action = context.Request["Action"];
            switch (action)
            {
                case "addCompensate":
                    CheckInBaseInfo(context);
                    break;
                default:
                    break;
            }
        }

        private void CheckInBaseInfo(HttpContext context)
        {
            Maticsoft.BLL.Promoter.PromoterBaseInfo bllInfo = new BLL.Promoter.PromoterBaseInfo();
            if (bllInfo.GetModelByMobile(context.Request["mobile"])!=null)
            {
                context.Response.Write("1");  //存在
            }
            else
            {
                context.Response.Write("0");  //不存在
            }
        }