Remove formatting from a string: “(123) 456-7890” => “1234567890”?

Question

I have a string when a telephone number is inputted - there is a mask so it always looks like \"(123) 456-7890\" - I\'d like to take the formatting out before saving it to the D

Answer 1

'you can use module / inside sub main form VB.net
Public Function ClearFormat(ByVal Strinput As String) As String
    Dim hasil As String
    Dim Hrf As Char
    For i = 0 To Strinput.Length - 1
        Hrf = Strinput.Substring(i, 1)
        If IsNumeric(Hrf) Then
            hasil &= Hrf
        End If
    Next
    Return Strinput
End Function
'you can call this function like this
' Phone= ClearFormat(Phone)