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minglelinch

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Phone # formatted textbox

I want to have a phone number textbox with a mask with format like xxx-xxx-xxxx, so that no matter what user types it always have the standard format. I like the mask do the job instead my javascript function check the format. How can I do it? Thanks.
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Avatar of Kyle Abrahams, PMP
Kyle Abrahams, PMP
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Avatar of Bill Nolan
Bill Nolan
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You can use a regular expression validator in .net.  Here's an example:
<asp:RegularExpressionValidator ID="ValidatorRegEx_Phone" runat="server"
                    ValidationGroup="SomeGroup"
                    ControlToValidate="TextBox_Phone"
                    ValidationExpression="((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}"
                    Text="Invalid telephone number!">
                </asp:RegularExpressionValidator>

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minglelinch

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Thanks for all the comments.  
The example in emoreau's is execellent.
I choose ged325's as it is simpler.