private void TextBox2_TextChanged(object sender, EventArgs e) { if (textBox2.Text == string.Empty) { return; } if (SaleCheckInput.ChcekTextChangeCash(this)) { double change = -(double.Parse(lblDisplayFinalPrice.Text.Trim('£')) - double.Parse(textBox2.Text)); lblDisplayChange.Text = change.ToString() + " £"; } }
private bool CheckCashInput() { return(SaleCheckInput.CheckCashInput(this)); }