M

E

N

U

 

 

CheckBoxList

выбор элементов
 
 

выбор элементов

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  Default.aspx  
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
 
<!DOCTYPE html>
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
 <meta charset="utf-8" />
 <title></title>
 <style>
  div {
   float: left;
  }
 </style>
</head>
<body>
 <form id="form1" runat="server">
  <div>
   <div>
    <asp:CheckBoxList ID="CheckBoxList1" runat="server">
     <asp:ListItem Value="#FF0000">Red</asp:ListItem>
     <asp:ListItem Value="#00FF00">Green</asp:ListItem>
     <asp:ListItem Value="#0000FF">Blue</asp:ListItem>
    </asp:CheckBoxList>
   </div>
   <div>
    &nbsp;&nbsp;&nbsp;
    <asp:Button ID="Button1" runat="server" Text="OK" OnClick="Button1_Click" />
    &nbsp;&nbsp;&nbsp;
    <asp:Button ID="Button2" runat="server" Text="Clear" OnClick="Button2_Click" />
    &nbsp;&nbsp;&nbsp;
    <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
    &nbsp;&nbsp;&nbsp;
    <asp:Label ID="Label2" runat="server" Text=""></asp:Label>
   </div>
  </div>
 </form>
</body>
</html>
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  Default.aspx  
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) {
  foreach(ListItem item in CheckBoxList1.Items) {
   if(item.Selected) {
    Label1.Text += item.Text + " ";
    Label2.Text += item.Value + " ";
   }
  }
 }
 protected void Button2_Click(object sender, EventArgs e) {
  Label1.Text = string.Empty;
  Label2.Text = string.Empty;
  CheckBoxList1.ClearSelection();
 }
}