private void EqualButton_Click(object sender, EventArgs e)
{
if (isOperation)
{
secondV = Convert.ToDouble(textBox1.Text);
}
else
{
label2.Text = textBox1.Text;
isEqual = true;
return;
}
label2.Text = c.FirstValue + c.Operation + Convert.ToString(secondV);
isEqual = true;
isOperation = false;
switch (c.Operation)
{
case "+":
textBox1.Text = Convert.ToString(c.Plus(secondV));
break;
case "-":
textBox1.Text = Convert.ToString(c.Minus(secondV));
break;
case "*":
textBox1.Text = Convert.ToString(c.Multiply(secondV));
break;
case "/":
if (secondV != 0)
{
textBox1.Text = Convert.ToString(c.Divide(secondV));
}
else
{
MessageBox.Show("На ноль делить нельзя");
isEqual = false;
MainText();
SecondaryText();
c = new Calculate();
}
break;
}
}