The next code shows how you can attach an asp:Label control with the asp:TextBox. In this case when the user clicks the Label the application will focus on the TextBox.
TestAssociate.aspx
<%@ Page Language=”vb” AutoEventWireup=”false” CodeBehind=”TestAssociate.aspx.vb” Inherits=”TextChange.TestAssociate” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”https://www.w3.org/1999/xhtml”>
<head runat=”server”>
<title>Associate a Label with a TextBox</title>
</head>
<body>
<form id=”form1″ runat=”server”>
<div>
<asp:Label ID=”LabelEMail” runat=”server” Text=”E-Mail: ” AssociatedControlID=”TextEMail”></asp:Label>
<asp:TextBox ID=”TextEMail” runat=”server”></asp:TextBox>
</div>
</form>
</body>
</html>
You can associate the Label to the TextBox control by specifying the Label property AssociateControlID to the TextBox’s ID. Clicking on the Label control focuses the TextBox.