private void UserNamePasswordCheck() { string EncryptedPassword = EncryptPassword(Password_textBox1.Text); SystemAccess aSystenAccess = new SystemAccess(); aSystenAccess.Username = Username_textBox2.Text; aSystenAccess.Password = EncryptedPassword; SignInBLL aSignInBLL = new SignInBLL(); bool result = aSignInBLL.Check_UserID_and_PasswordBLL(aSystenAccess); if (result) { Frontend aFrontend = new Frontend(); aFrontend.Show(); this.Hide(); } else { Password_Warning_label4.Text = "!!! Wrong UserID or Password !!!"; } }