how to do validation on textbox for phone no. using c#.net

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i want to check validation on textbox for phone no entered or not?
if any one having any code pls forward it.
thanks in advance.

Posted 8-Aug-12 0:17am

SamWakchaure

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Dinesh Ambaliya · Answer 1 · 2012-08-08T00:24:00

Solution 1

use this link
http://regexlib.com/Search.aspx?k=phone&c=-1&m=-1&ps=20[^]

Posted 8-Aug-12 0:24am

Dinesh Ambaliya

bbirajdar · Answer 2 · 2012-08-08T00:25:00

Solution 2

" phone no entered or not?"

Use the RequiredFieldValidator.

http://www.w3schools.com/aspnet/showasp.asp?filename=demo_reqfieldvalidator[^]

Posted 8-Aug-12 0:25am

bbirajdar

Prabhakaran Soundarapandian · Answer 3 · 2012-08-08T00:28:00

Solution 3

Try this one

C#

<asp:TextBox id="txtphone" Runat="server" />
<asp:RegularExpressionValidator id="RegularExpressionValidator1" runat="server"
ErrorMessage="In Valid phone no." ValidationExpression="^(?:[0-9]+(?:-[0-9])?)*$" ControlToValidate="txtphone" />

Posted 8-Aug-12 0:28am

Prabhakaran Soundarapandian

rejeesh k · Answer 4 · 2012-08-08T01:29:00

Solution 4

Refer this link.....
http://www.regexlib.com/Search.aspx?k=phone&AspxAutoDetectCookieSupport=1[^]

Posted 8-Aug-12 1:29am

rejeesh k

Shail Mishra · Answer 5 · 2013-11-14T23:45:00

Solution 5

{
    if (!char.IsControl(e.KeyChar)
        && !char.IsDigit(e.KeyChar)
        && e.KeyChar != '.')
    {
        e.Handled = true;
    }

    if (e.KeyChar == '.'
     && (sender as TextBox).Text.IndexOf('.') > -1)
    {
        e.Handled = true;
    }
}

Posted 14-Nov-13 23:45pm

Shail Mishra