private void EqualClick(object sender, RoutedEventArgs e) { BtnEqual.IsEnabled = false; BtnPoint.IsEnabled = true; BtnC.IsEnabled = true; BtnCE.IsEnabled = false; TxtDisplay.Text = operations.EqualOperation(TxtDisplay.Text); if (TxtDisplay.Text == "Cannot divide by zero!") { EnableDisableButtons(false); NumericalButtons(false); BtnEqual.IsEnabled = false; BtnPoint.IsEnabled = false; BtnCE.IsEnabled = false; BtnMemoryAdd.IsEnabled = false; BtnMemorySubstract.IsEnabled = false; BtnMemoryStore.IsEnabled = false; } else { FormatTextForOperations(); } }