VBNET verifique si la cadena es solo números
If System.Text.RegularExpressions.Regex.IsMatch(MyString, "^[0-9 ]+$") Then
'String is only numbers
End If
Salty Joe
If System.Text.RegularExpressions.Regex.IsMatch(MyString, "^[0-9 ]+$") Then
'String is only numbers
End If