Win10-UWP application C++/CX programming-transfer data between pages

During the UWP development process, switching between pages is very common. In the process of switching, we want to pass some parameters or data that we need at the same time. The function of page navigation has prepared the function of parameter passing for us, so we can use it directly.

Basic instructions:

public:
 virtual bool Navigate(TypeName sourcePageType, Platform::Object ^ parameter, NavigationTransitionInfo ^ infoOverride) = Navigate;
//The first parameter is the type of page that needs to be navigated
//The second parameter is what we need
//The third is navigation animation

Add under the event function that needs to perform navigation operations

Frame->Navigate(TypeName(UserPage::typeid), nullptr, ref new DrillInNavigationTransitionInfo());

Add under the UserPage.xaml.cpp file of the navigation target page

void MyAPP::UserPage::OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e)
{
	//code
}

Add in the corresponding header file UserPage.xaml.h

public ref class MainPage sealed
{
	//Some code already there
	protected:
		virtual void OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e) override;
}

example:

Now we have to pass the content of a textbox control

/**SourcePage*****************************************************************************/
Frame->Navigate(TypeName(UserPage::typeid), UserName->Text, ref new DrillInNavigationTransitionInfo());

/**TagetPage*****************************************************************************/
void MyAPP::UserPage::OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e)
{
	auto Name = e->Parameter->ToString();
	//In this way, what is stored in the Name is the string entered in the textbox of the navigation page.
}

Reference link:
1.VC++ UWP app OnNavigatedTo( NavigationEventArgs^ ) won’t compile
2.Passing information between pages
3.Navigate(Type, Object, NavigationTransitionInfo)

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