Checkboxlist control in asp net
Checkboxlist Asp.Net Control:
A checkboxlist is the
collection of squared object that allows to you to click on these given item
for selection. If the square is empty then it return false, and when you clicked,
the square would have a check mark and return true. And if again you do the square had a check
mark (clicked), the check mark would be removed from checkboxlist item checkbox.
The each item of checkboxlist (checked or unchecked has Boolean values) holds a Boolean value of true or false. When it
is not marked, then it has a value of false and when it is marked, then it has
a value of true.
ASP.net How to use Checkboxlist:
Creating checkboxlist on asp.net page. Checkboxlist
control enables to use to multi-selection check box in list.
<asp:CheckBoxList ID="chklstStates" runat="server">
</asp:CheckBoxList>
This
is example code for taking a checkboxlist on asp.net web page.
Create checkboxlist with list item:
<asp:CheckBoxList ID="check1" AutoPostBack="True" TextAlign="Right" runat="server">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</asp:CheckBoxList>
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Asp.net c# CheckBoxList control example:
<%@ Page
Language="C#"
AutoEventWireup="true"
CodeFile="checkboxlist1aspx.aspx.cs"
Inherits="checkboxlist1aspx"
%>
<!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 id="Head1" runat="server">
<title>ASP.net How to use Checkbox list control</title>
<style type="text/css">
div
{
margin:10px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<div style="width:400px; float:left;">
<fieldset>
<h3> Checkbox
list control Example:</h3>
<p>List of State: select checkbox from this
checkboxlist control:</p>
<div>
<asp:CheckBoxList ID="chklstStates"
runat="server">
<asp:ListItem Text="Alabama"
Value="Alabama"></asp:ListItem>
<asp:ListItem Text="Alaska"
Value="Alaska"></asp:ListItem>
<asp:ListItem Text="Arizona"
Value="Arizona"></asp:ListItem>
<asp:ListItem Text="Arkansas"
Value="Arkansas"></asp:ListItem>
<asp:ListItem Text="California"
Value="California"></asp:ListItem>
<asp:ListItem Text="Connecticut"
Value="Connecticut"></asp:ListItem>
<asp:ListItem Text="Florida"
Value="Florida"></asp:ListItem>
<asp:ListItem Text="Delaware"
Value="Delaware"></asp:ListItem>
<asp:ListItem Text="Hawaii"
Value="Hawaii"></asp:ListItem>
<asp:ListItem Text="Kentucky"
Value="Kentucky"></asp:ListItem>
<asp:ListItem Text="Maryland"
Value="Maryland"></asp:ListItem>
<asp:ListItem Text="New Jersey"
Value="New
Jersey"></asp:ListItem>
<asp:ListItem Text="New York"
Value="New
York"></asp:ListItem>
</asp:CheckBoxList>
</div>
<asp:Button ID="btnSubmit"
runat="server"
Text="Submit"
OnClick="btnSubmit_Click"
/>
</fieldset>
</div>
<div style="width:289px; float:left;">
<fieldset style="width: 297px">
<h3>Selected States:</h3>
<p>selected checkbox from this checkboxlist</p>
<p> </p>
<div>
<asp:Label ID="lblStates"
runat="server"></asp:Label>
</div>
</fieldset>
</div>
</div>
</form>
</body>
</html>
 |
| how to use checkboxlist control |
CheckBoxList Control C# code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class checkboxlist1aspx
: System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
lblStates.Text = string.Empty;
}
protected void
btnSubmit_Click(object sender, EventArgs e)
{
foreach (ListItem
item in chklstStates.Items)
{
if (item.Selected)
lblStates.Text += item.Text + "<br>";
}
}
}
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