How to validate US Phone number in asp.net?

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Hi,
How to validate 10 Digit US Phone number with Extension using asp.net?

Actually I want enter only following formats

ex: 123-456-7890 / 123-345-5678 Ext 8547965
123 456 7890 / 123 345 5678 Ext 8547965

Please anybody knows Please let me know?

Posted 28-Sep-14 20:58pm

24983

Updated 29-Sep-14 0:19am

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[no name] 29-Sep-14 2:58am

u can use regular expression validater in asp.net

24983 29-Sep-14 4:01am

I used following expression for allowed 7 and 10 digit
"^^((($\d{3}$|\d{3})( |-|\.))|($\d{3}$|\d{3}))?\d{3}( |-|\.)?\d{4}\s*(( |-|\.)?([Ee]xt|[Xx])[.]?( |-|\.)?\d{1,7})?$"

I need to allow 10 digit number and extension and output is
123 456 7890 / 123 345 5678 Ext 8547965

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-09-28T21:00:00

Solution 1

Please see:
http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex%28v=vs.110%29.aspx[^],
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.regularexpressionvalidator%28v=vs.110%29.aspx[^].

—SA

Posted 28-Sep-14 21:00pm

Sergey Alexandrovich Kryukov

Updated 28-Sep-14 21:01pm

v2

RajeeshMenoth · Answer 2 · 2014-09-28T21:04:00

Solution 2

Can u use this type of validation in asp.net
eg:

C#

<asp:RegularExpressionValidator ID="RegExp1" runat="server"
ErrorMessage="Phonenumber must be between 7 to 10 characters"
ControlToValidate="txtPassword"
ValidationExpression="^[0-9]{7,10}$" />

Posted 28-Sep-14 21:04pm

RajeeshMenoth