private void hexadecimaal(CultureInfo clone)
        {
            if (txtInput.Text != "")
            {
                decimal ingave = decimal.Parse(txtInput.Text, clone);

                if (cmbSelection.SelectedValue.ToString() == "Decimaal")
                {
                    convertFromDecimal newDecimal = new convertFromDecimal();
                    lblHexadecimaal.Content = newDecimal.hexNummer(ingave);
                }

                if (cmbSelection.SelectedValue.ToString() == "Binair" && Regex.IsMatch(ingave.ToString(), @"[0-1]") && !Regex.IsMatch(ingave.ToString(), @"[2-9]"))
                {
                    convertFromBinary newBinary = new convertFromBinary();
                    lblHexadecimaal.Content = newBinary.hexadecimal(ingave);
                }
            }
        }