<html>
<body>
<form
runat="server">
Enter a US zip code:
<asp:TextBox
id="txtbox1" runat="server" />
<br /><br />
<asp:Button
text="Submit" OnClick="submit" runat="server" />
<br
/><br />
<asp:Label id="lbl" runat="server" />
<br
/>
<asp:RegularExpressionValidator
ControlToValidate="txtbox1"
ValidationExpression="\d{5}"
EnableClientScript="false"
ErrorMessage="The
zip code must be 5 numeric digits!"
runat="server" />
</form>
</body>
</html>
Output Result:
Enter a US zip code:
The page is not valid!
The zip code must be 5 numeric digits!
--Vamsi Effective Blogs "Make everything as simple as possible but not simpler"--
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