protected void OnButtonOperationClicked(object sender, EventArgs e)
{
if (screen.Text == "")
{
return;
}
var button = (Button)sender;
if (screen.Text[screen.Text.Length - 1] == ' ')
{
screen.Text = screen.Text.Remove(screen.Text.Length - 3);
}
screen.Text = CalculateMachine.Calculate(screen.Text);
screen.Text = screen.Text + " " + button.Label + " ";
}
protected void OnButtonResultClicked(object sender, EventArgs e)
{
screen.Text = CalculateMachine.Calculate(screen.Text);
}
