private void Result_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(Screen.Text))
{
MessageBox.Show("Введите число и выберите операцию");
return;
}
b = Convert.ToInt32(Screen.Text);
switch (operation)
{
case eOperation.empty:
MessageBox.Show("Выберите операцию и введите второе число");
break;
case eOperation.addition:
Screen.Text = Controller.Addition(a, b);
break;
case eOperation.subtraction:
Screen.Text = Controller.Substraction(a, b);
break;
case eOperation.multiplication:
Screen.Text = Controller.Multiplication(a, b);
break;
case eOperation.division:
try
{
Screen.Text = Controller.Division(a, b);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
break;
default:
MessageBox.Show("Ошибка операции");
break;
}
}