Материал из .Net Framework эксперт
Grab textbox focus in VB.net
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load()
txtFirstName.Focus()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TextBox Focus</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblFirstName"
Text="First Name:"
AssociatedControlID="txtFirstName"
Runat="server" />
<br />
<asp:TextBox
id="txtFirstName"
AutoCompleteType="FirstName"
Runat="server" />
<br /><br />
<asp:Label
id="lblLastname"
Text="Last Name:"
AssociatedControlID="txtLastName"
Runat="server" />
<br />
<asp:TextBox
id="txtLastName"
AutoCompleteType="LastName"
Runat="server" />
<br /><br />
<asp:Button
id="btnSubmit"
Text="Submit"
Runat="server" />
</div>
</form>
</body>
</html>
