web网页
Posted 玉滨的博客
tags:
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前端代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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 runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div id="div_chk"
style = "width:1000px;border:3px outset #dd9900;margin:54px auto 0 auto;backgroup:red"
runat="server">
你学过的课程有：<br/>
<asp:CheckBox ID="C1" Text = "数据库原理" Width = "260px" runat="server" />
<asp:CheckBox ID="C3" Text = "操作系统" Width = "260px" runat="server" />
<asp:CheckBox ID="C5" Text = "c语言" Width = "260px" runat="server" />
<asp:CheckBox ID="C6" Text = "计算机网络" Width = "260px" runat="server" />
<asp:CheckBox ID="C7" Text = "管理学" Width = "260px" runat="server" />
<asp:CheckBox ID="C8" Text = "电子商务" Width = "260px" runat="server" />
<asp:CheckBox ID="C9" Text = "计算机基础" Width = "260px" runat="server" />
<br/>
<asp:Button ID="Button1" runat="server" Text="确定" onclick="Button1_Click" />
<br/>
<asp:TextBox ID="TextBox1" TextMode ="Multiline" Rows = "6" runat="server"></asp:TextBox>
<br/>
<br/>
<asp:TextBox ID="TextBox2" TextMode ="Multiline" Rows = "6" runat="server"></asp:TextBox>
<asp:Button ID="Button2" runat="server" Text="确定" onclick="Button2_Click" />
<br/>
<br/>
<div id = "div_sun" runat = "server">
<asp:Button ID="Button3" runat="server" Text="Button" />
<asp:Button ID="Button4" runat="server" Text="Button" />
<asp:Button ID="Button5" runat="server" Text="Button" />
<asp:Button ID="Button6" runat="server" Text="Button" />
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
</div>
<asp:Button ID="Button7" runat="server" Text="显示控件个数" onclick="Button7_Click" />
</div>
</form>
</body>
</html>
后端代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
TextBox1.Text = "";
CheckBox chk;
foreach(Control _ctl in div_chk.Controls){
if(_ctl is CheckBox){
chk = (CheckBox)_ctl;
if(chk.Checked == true){
TextBox1.Text +=chk.Text+",";
}
}
}
}
protected void Button2_Click(object sender, EventArgs e)
{
char[] str1 = "abcdefg!".ToCharArray();
foreach (char ch in str1)
{
TextBox2.Text += ch.ToString() + Convert.ToChar(13);
}
}
protected void Button7_Click(object sender, EventArgs e)
{
Button bu;
TextBox te;
int i=0;
int j=0;
foreach (Control bt in div_sun.Controls)
{
if (bt is Button) {
i++;
}
if (bt is TextBox) {
j++;
}
}
Response.Write("按钮控件"+i.ToString() + "个" + "</br>");
Response.Write("文本框控件" + j.ToString() + "个" + "</br>");
}
}
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