private void NumPlus_Click(object sender, EventArgs e)
{
if (isNewNum == false)
{
int num = int.Parse(NumScreen.Text);
if (Opt == Operaotors.Add)
{
Result = Result + num;
}
else if (Opt == Operaotors.Sub)
{
Result = Result - num;
}
NumScreen.Text = Result.ToString();
isNewNum = true;
}
Button optButton = (Button)sender;
if (optButton.Text == "+")
{
Opt = Operaotors.Add;
}
else if (optButton.Text == "-")
{
Opt = Operaotors.Sub;
}
}
private void NumClear_Click(object sender, EventArgs e)
{
Result = 0;
isNewNum = true;
Opt = Operaotors.Add;
NumScreen.Text = "0";
}