/// <summary>
/// Tell the calculator engine to clear itself
/// </summary>
private void clear_btn(object sender, EventArgs e)
{
if (sender is Button)
{
Button clearBtn = sender as Button;
switch (clearBtn.Name)
{
case "clear_All":
CalcEngine.ClearAll();
paren_txt.Text = string.Empty;
operation_txt.Text = string.Empty;
status_txt.Text = string.Empty;
UpdateScreen();
break;
case "clear_Entry":
CalcEngine.clear();
UpdateScreen();
if (!CalcEngine.m_openParen)
{
status_txt.Text = string.Empty;
}
break;
}
}
}
public void clearCalcEngine()
{
CalcEngine.ClearAll();
Assert.IsTrue(CalcEngine.AssureCleared());
}