ValidationExpression for zip/postal codes

[Matt Nunnally]

I'm trying to get my zip code textbox to validate both US zip codes and Canadian Postal code formats. But I can't figure out the syntax. Can somebody help? Here is what I got:

<asp:regularexpressionvalidator id="rxZipCode" runat="server" ControlToValidate="txtZipCode" Display="Dynamic" ErrorMessage="Zip Code is invalid." ValidationExpression="\d{5}?" & "[A-Z]\\d[A-Z] \\d[A-Z]\\d">*</asp:regularexpressionvalidator>

[Plater]

Good luck!
Postal codes are a mess
us can be just 5 or just 5 plus another 4 or just 5 plus 5, or more.
Some contain letters as well as numbers.

[Matt Nunnally]

So ValidationExpression doesn't have an "or' operator?

[Plater]

So ValidationExpression doesn't have an "or' operator?

It should, I would just be surprised if you can find a big enough regex to cover postal codes.

[Matt Nunnally]

Am I close with this? I put the | operator in there. It still only accepts US zips.

ValidationExpression="\d{5}?|[A-Z]\\d[A-Z] \\d[A-Z]\\d

The regex for Canadian Postals should be ok right? Is just ANA NAN, right?

[Shashi Sadasivan]

This and This too

They give some regex's

cheers