C# validate phone number with Regex

Asked Aug 08 '13 at 10:39

Active Aug 08 '13 at 10:39

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It would be great if someone could help me with a Regex for phone numbers. I have one TextBox and I use the C# Control "RegularExpressionValidator" to validate it.

 <asp:TextBox runat="server" ID="txtPhone"></asp:TextBox>
 <asp:RegularExpressionValidator runat="server" 
       ErrorMessage="Pleace enter valid phone number " 
       ControlToValidate="txtPhone"
       ValidationExpression="">
 </asp:RegularExpressionValidator>

The TextBox text have to allow only to be entered this kind of phone numbers

ex: +934 888 555 22 13

Can someone help me for the Regex?

Thanks in advance

asked Aug 08 '13 at 10:39

DID

1

Did you try anything? – Panagiotis Kanavos Aug 08 '13 at 10:40
4

Visit [A comprehensive regex for phone number validation](http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation) – Satpal Aug 08 '13 at 10:40
Is it that format only? Are there any variations of it that are permitted? – musefan Aug 08 '13 at 10:41
No, other formats are not allowed, only this one – DID Aug 08 '13 at 10:43
Is that ALL cases? What about without spaces? How about the plus-sign, is that necessary? Are you doing anything to help the users type it in, in that format? – Lars Kristensen Aug 08 '13 at 10:44
Yes, there is a hint how it should be written. Spaces are allowed,and the plus-sign must be there. – DID Aug 08 '13 at 10:49

C# validate phone number with Regex

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