Import properties, events and methods of CheckBox control : CheckBox « ASP.net Controls « ASP.NET Tutorial

AccessKey:      specify a key that navigates to the TextBox control.

AutoPostBack:   post the form containing the CheckBox back to the server automatically when the CheckBox is checked or unchecked.

Checked:        get or set whether the CheckBox is checked.

Enabled:        disable the TextBox.

TabIndex:       specify the tab order of the check box.

Text:           provide a label for the check box.

TextAlign:      align the label for the check box. Possible values are Left and Right.

Focus:          set the initial form focus to the check box.

CheckedChanged: Raised on the server when the check box is checked or unchecked.

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        lblResult.Text = chkNewsletter.Checked.ToString();
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Show CheckBox</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:CheckBox
        id="chkNewsletter"
        Text="Receive Newsletter?"
        Runat="server" />
    <br />
    <asp:Button
        id="btnSubmit"
        Text="Submit"
        OnClick="btnSubmit_Click"
        Runat="server" />
    <hr />

    <asp:Label
        id="lblResult"
        Runat="server" />

    </div>
    </form>
</body>
</html>

3.11.CheckBox
	3.11.1.	Import properties, events and methods of CheckBox control
	3.11.2.	Get selected CheckBox
	3.11.3.	asp: CheckBox changed event (C#)
	3.11.4.	use the AutoPostBack property to post the form to the server automatically when the check box is checked or unchecked.