private void EnteringSystem(Button newPressedButton)
{
if ((CalculatorTextBox.Text == "0") || (isOperationSignPressed))
{
CalculatorTextBox.Clear();
}
ActiveOperation();
Button button = (Button)newPressedButton;
CalculatorTextBox.Text = CalculatorTextBox.Text + button.Text;
if (isOperationSignPressed)
{
NotActiveOperation();
ButtonResult.Enabled = true;
}
}
private void ButtonClear_Click(object sender, EventArgs e)
{
Button firstPressedButton = (Button)sender;
Button secondPressedButton = (Button)sender;
if (operation != string.Empty)
{
CalculatorTextBox.Text = CalculatorTextBox.Text + secondPressedButton.Text;
CalculatorTextBox.Clear();
ButtonResult.Enabled = false;
NotActiveOperation();
}
else if (operation == string.Empty)
{
CalculatorTextBox.Text = CalculatorTextBox.Text + firstPressedButton.Text;
CalculatorTextBox.Clear();
ButtonResult.Enabled = false;
NotActiveOperation();
}
}
