ASP.Net/Validation by Function/Zip Code
Regular Expression Validator Example: zip code
<%@ Page %>
<html>
<body>
<h1>Regular Expression Validator Example</h1>
<form runat="server">
Zipcode:<asp:TextBox id="_zipcode" runat=server/><asp:RegularExpressionValidator
ControlToValidate="_zipcode"
Display="static"
ErrorMessage="Zip code must be of the form 11111-1111"
InitialValue="" width="100%" runat=server
ValidationExpression="\d{5}(-\d{4})?">**
</asp:RegularExpressionValidator>
<br/>
<input value="Enter" type=submit />
</form>
</body> </html>
Using a RegularExpressionValidator Control to Test a Zip Code (VB.net)
<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub Answer_ServerValidation(source As object, E As ServerValidateEventArgs)
If E.Value = "VB" or E.Value = "VB.NET" or E.Value = "C#" _
or E.Value = "C#.NET" or E.Value = "A bunch of others." Then
E.IsValid = True
Else
E.IsValid = False
End If
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Using a RegularExpressionValidator Control to Test a Zip Code</TITLE>
</HEAD>
<form runat="server">
<BR><BR>
What languages can you use with ASP.NET?<BR>
<asp:textbox
id="txtAnswer"
runat=server
/>
<asp:customvalidator
id="custom9"
controltovalidate="txtAnswer"
OnServerValidate="Answer_ServerValidation"
display="Dynamic"
font-name="Verdana"
font-bold="True"
font-size="10pt"
runat="server">
<BR>Incorrect answer please try again!
</asp:CustomValidator>
<BR><BR>
<asp:button
id="butOK"
text="OK"
type="Submit"
runat="server"
/>
</form>
</BODY>
</HTML>
Using a RegularExpressionValidator Control to Test a Zip Code with validationexpression (VB.net)
<%@ Page Language=VB Debug=true %>
<HTML>
<HEAD>
<TITLE>Using a RegularExpressionValidator Control to Test a Zip Code</TITLE>
</HEAD>
<form runat="server">
<BR><BR>
Please enter a 5-digit Zip Code:<BR>
<asp:textbox
id="txtZipCode"
runat=server
/>
<asp:regularexpressionvalidator
id="regZipCode"
controltovalidate="txtZipCode"
validationexpression="^\d{5}$"
display="Dynamic"
font-name="Arial"
font-size="11"
runat=server
>
Zip code must be a number in the form of 12345.
</asp:regularexpressionvalidator>
<BR><BR>
<asp:button
id="butOK"
text="OK"
type="Submit"
runat="server"
/>
</form>
</BODY>
</HTML>