If e.KeyChar = CChar(ChrW(Keys.Back)) Or e.KeyChar = CChar(".") Then
e.Handled = False Else e.Handled = True....
i want explanations for the above code..i know this code for validate the textbox in vb.net..
but i can't understand the use of CChar,ChrW,keys.back...
so telll me wht is use of CChar,ChrW,Keys.back>