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src/Calculator/Views/CalculatorStandardOperators.xaml.cpp

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+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+//
+// CalculatorStandardOperators.xaml.cpp
+// Implementation of the CalculatorStandardOperators class
+//
+
+#include "pch.h"
+#include "CalculatorStandardOperators.xaml.h"
+
+using namespace CalculatorApp;
+
+using namespace Platform;
+using namespace Windows::Foundation;
+using namespace Windows::Foundation::Collections;
+using namespace Windows::UI::Xaml;
+using namespace Windows::UI::Xaml::Controls;
+using namespace Windows::UI::Xaml::Controls::Primitives;
+using namespace Windows::UI::Xaml::Data;
+using namespace Windows::UI::Xaml::Input;
+using namespace Windows::UI::Xaml::Media;
+using namespace Windows::UI::Xaml::Navigation;
+
+// The User Control item template is documented at http://go.microsoft.com/fwlink/?LinkId=234236
+
+CalculatorStandardOperators::CalculatorStandardOperators() :
+    m_isErrorVisualState(false)
+{
+    InitializeComponent();
+}
+
+bool CalculatorStandardOperators::IsErrorVisualState::get() {
+    return m_isErrorVisualState;
+}
+
+void CalculatorStandardOperators::IsErrorVisualState::set(bool value)
+{
+    if (m_isErrorVisualState != value)
+    {
+        m_isErrorVisualState = value;
+        String^ newState = m_isErrorVisualState ? L"ErrorLayout" : L"NoErrorLayout";
+        VisualStateManager::GoToState(this, newState, false);
+        NumberPad->IsErrorVisualState = m_isErrorVisualState;
+    }
+}