We may often need to dynamically create in the development of some controls, if dynamically create web controls very troublesome, this article describes to you how to use JS to create html controls and the value in the background, without further ado, serving:
Code
1<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="GetHtmlCtrValue.aspx.cs"
2 Inherits="RoadShow.Web.GetHtmlCtrValue" %>
3
4<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
5<html xmlns="http://www.w3.org/1999/xhtml">
6<head runat="server">
7 <title>无标题页</title>
8
9 <script language="javascript" type="text/javascript">
10 function CreateInputTxt()
11 {
12 document.getElementById("Count").value++;
13 var i=0;
14 if(i<5)
15 {
16 i++;
17 div1.innerHTML=div1.innerHTML + "<input type='text' name='text"+i+"' style='width:270px;' MaxLength='20' ><br>";
18 }
19 if(i>6)
20 {
21 alert("选项不应超过6个");
22 }
23 }
24 </script>
25
26</head>
27<body>
28 <form id="form1" runat="server">
29 <div id="div1">
30 <input type="text" name="txtFile" />
31 <a href="javascript:CreateInputTxt();">添加新的text</a>
32 <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
33 </div>
34 <asp:HiddenField ID="Count" runat="server" Value="0" />
35 </form>
36</body>
37</html>
后台代码:
Code
1using System;
2using System.Collections;
3using System.Configuration;
4using System.Data;
5using System.Linq;
6using System.Web;
7using System.Web.Security;
8using System.Web.UI;
9using System.Web.UI.HtmlControls;
10using System.Web.UI.WebControls;
11using System.Web.UI.WebControls.WebParts;
12using System.Xml.Linq;
13
14namespace RoadShow.Web
15{
16 public partial class GetHtmlCtrValue : System.Web.UI.Page
17 {
18 protected void Page_Load(object sender, EventArgs e)
19 {
20
21 }
22
23 protected void Button1_Click(object sender, EventArgs e)
24 {
25 //获得text的个数
26 int i = int.Parse(this.Count.Value);
27 //Response.Write(i);
28 //定义个数组,用来接受text的值
29 string[] strArray = new string[i];
30 for (int j = 0; j < i; j++)
31 {
32 strArray[j] = Request.Form["text" +(j+1)];
33
34 }
35 foreach (string str in strArray)
36 {
37 //测试strArray里有没有值
38 Response.Write(str);
39 }
40 //for (i = 1; i < 6; i++)
41 //{
42 // Response.Write(Request.Form["text" + i]);
43 //}
44 }
45 }
46}
转载于:https://www.cnblogs.com/zhangchenliang/archive/2010/08/03/1791074.html