Checkbox Control

CheckBoxes allow the user to make multiple selections from a number of options and CheckBoxes comes with a caption, which you can set in the Text property.

vb.net

  CheckBox1.Text = "CheckBox"

C#

  CheckBox1.Text = "CheckBox";

We can decide whether the checkbox is clicked or not by its checked property.

vb.net
If CheckBox1.Checked = True Then Label2.Text = "Checkbox Clicked "
End If

C#
if (CheckBox1.Checked == true) { Label2.Text = "Checkbox Clicked";
}

The following ASP.Net program detect whether the Checkbox is clicked or not and display the message on Label control.

Default.aspx

  

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
	<title>Untitled Page</title>
</head>
<body>
	<form id="form1" runat="server">
	<div>
		<asp:CheckBox ID="CheckBox1" runat="server" Text="CheckBox"
			AutoPostBack="True"  oncheckedchanged="CheckBox1_CheckedChanged" />
	   <br />
		<asp:Label ID="Label2" runat="server" Text="Label2"></asp:Label>
	</div>
	</form>
</body>
</html>

Click the following links to see full source code

C# Source Code

VB.NET Source Code

default.aspx.cs

default.aspx.vb

ASP.NET Web Controls - Related Contents

Label Control

Button Control

Textbox Control

DropDownList Control

Listbox Control

RadioButton Control