Mega Code Archive
Validate Zip code
<![CDATA[
<%@ Page Language="C#" %>
<!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 runat="server">
<title>Regular Expression Tester</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label3"
runat="server"
Text="The Following Field (TextBox3) Must be a US Zip Code."></asp:Label><br />
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1"
runat="server"
ControlToValidate="TextBox3"
ErrorMessage="TextBox3 Must be a US Zip Code"
SetFocusOnError="True"
ValidationExpression="\d{5}(-\d{4})?">*</asp:RegularExpressionValidator><br />
</form>
</body>
</html>
]]>