Submit AJAX to the current page for processing

Previously, I wrote an ajax application to submit it to the ashx General handler! Then a new ashx page will be created! You can also submit it to the current page to avoid creating a new ashx! However, submitting to this page is equivalent to submitting the tag and will do some useless operations! Because IsPostBack does not work for ajax requests! Which page does ajax submit! I am not very clear! If you are interested, you can go to Baidu and google to find the answer!

Default. aspx page

<% @ Page Language = "C #" AutoEventWireup = "true" CodeBehind = "Default. aspx. cs" Inherits = "Test. _ Default" %> <! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

Default. aspx background

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace Test{    public partial class _Default : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e)        {            if (IsPostBack) return;            if (!string.IsNullOrEmpty(Request.QueryString["ajax"]))            {                string name = "hao'jiang\"fesd";                string json = "{Id:1,Name:\"" + name.Replace("'", "%27").Replace("\"", "%22") + "\",Sex:\"male\"}";

// Hey, the above can be used: string json = "{Id: 1, Name: \" "+ Server. urlEncode (name) + "\", Sex: \ "male \"} "; Response. write (json );

/** Note: If the page submitted by ajax is aspx. * Response. end (); otherwise, you will print out the characters you need, and then print the HTML of the page *. I didn't know it before and didn't execute Response. end (), xmlhttprequest. responseText: * it still needs to be truncated! * Remember to call Response. End () every time. If you are interested, comment out Response. End (); and try again! **/Response. End ();

                //Response.End();            }           }            }}

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