1 <body >
2 <form method="post" action="program.ashx">
3 <input type="hidden"value="true"name="ispostback" />
4 <!--隐藏字段的作用是判断是否是提交表单进入program.ashx-->
5 姓名：<input type="text" name="ming"value="@value"/>
6 <input type="submit" value="提交" />
7 @msg
8 </form>
9 </body>
10 </html>
11
12
13 public void ProcessRequest(HttpContext context)
14 {
15 context.Response.ContentType = "text/html";
16 string fullpath = context.Server.MapPath("HtmlGetElementByid.html");
17 string content = File.ReadAllText(fullpath);
18 string msg = "";
19 string ispostback=context.Request["ispostback"];
20 string ming = context.Request["ming"];
21
22 if (ispostback=="true")
23 {
24 context.Response.Write("提交进入");
25 msg = ming + "你好";
26 }
27 else
28 {
29 context.Response.Write("直接进入");
30 }
31 content = content.Replace("@value",ming);
32 content = content.Replace("@msg",msg);
33 context.Response.Write(content);
34 context.Response.Write(ming);
35 }
实现按键值自增
public class IncreaseValue : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
string ispostback=context.Request["ispostback"];
string number = context.Request["number"];
if(ispostback=="true")
{
if (number == "@value") number = "0";
int i = Convert.ToInt32(number);
i++;
number = i.ToString();
}
else
{
number = "0";
}
string path = context.Server.MapPath("IncreaseValue.html");
string content = System.IO.File.ReadAllText(path);
content=content.Replace("@value",number);
context.Response.Write(content);
}
<body>
<form action="IncreaseValue.ashx">
<input type="hidden"value="true"name="ispostback" />
<input type="text"value="@value"name="number"/>
<input type="submit"value="自增" />
</form>
</body>
时间： 2024-12-28 13:53:44