<%@ WebHandler Language="C#" Class="IsPostBack" %>
using System;
using System.Web;
public class IsPostBack : IHttpHandler {
public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "text/html";
//context.Response.Write("Hello World");
string ispostback = context.Request["ispostback"];
string username = context.Request["username"];
if (ispostback == "true")
{
context.Response.Write("提交进入");
}
else
{
context.Response.Write("直接进入");
}
string fillpath = context.Server.MapPath("IsPostBack.htm");
string content = System.IO.File.ReadAllText(fillpath);
content = content.Replace("@username",username);
context.Response.Write(content);
}
public bool IsReusable {
get {
return false;
}
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
<form action="IsPostBack.ashx" method="post">
<input type="hidden" value="true" name="ispostback"/>
<input type="text" name="username" value="@username" />
<input type="submit" value="提交" />
</form>
</body>
</html>