Phone Number Validation with Three Text Boxes?

[Jeff Kiesel]

Has anyone used three textboxes for phone number input and successfully
validated it?

One textbox for area code, one for exchange, one for number. (yes, we're
only doing US numbers) )

 

[Kevin Parkinson]

Jeff:
Have you tried it yet? It doesn't seem like it would be hard to do.
Do you mean validating whether it is a real phone number, or just validating
the characters? I would use web controls for this, you know the
<asp:textbox... things, and set the max length accordingly, then write some
little functions such as ( I am into C# these days ):

public bool hasIllegalCharacters( String s )
{
if ( s has things like %, !, /, <SCRIPT> or INSERT in it )
{
return false;
}
return true;
}

then from lets say, a forms submit button click event:

String pnumber;
pnumber = ac.Text + ex.Text + number.Text;
if ( this.hasIllegalCharacters( pnumber) )
{
Response.Redirect("error.aspx");
}
else
{
Response.Redirect("Validated.aspx")
}

Is that what you were wondering?

Kevin Parkinson

 

[Rick Spiewak]

You could use regular expression validation on each box, should be
relatively straightforward.