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       <asp:TextBox ID="txt_PhNo" CssClass="txt_box" runat="server" />
       <asp:RequiredFieldValidator ID="RequiredFieldValidator5" ControlToValidate="txt_PhNo" runat="server" ValidationGroup="ORG"
CssClass="Error" Text="*Organisation Name is a required field."></asp:RequiredFieldValidator

How to add validation for phone number so that it allows + () and space, If I validate with numbers then + () and space are not allowed how to do that. Thanks

Joel Coehoorn
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Mark
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    Checkout: [A comprehensive regex for phone number validation](http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation). – jdavies Nov 08 '11 at 10:23

1 Answers1

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Investigate the RegularExpressionValidator, perhaps in conjunction with A comprehensive regex for phone number validation

Community
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Simon
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