Adding ContentDialog item to UWP Blank App (C++/WinRT) fails to generate .g.h file?

Question

I am trying to add a ContentDialog item to UWP Blank App (C++/WinRT) project. With a fresh project of this type I choose Add New Item > XAML > ContentDialog. Once the item is added to the project it no long builds successfully - a error 'C1083: Cannot open include file: 'cd1.g.h': No such file or directory' is returned where cd1 is the name I gave to the item upon creation. I searched the project directory in File Explorer and it does not exist. I tried solutions offered by this AI - rebuild, try adding the same item by Add Existing Item. No luck. Seems like Visual Studio is not generating the file, rather than a programming or setup problem? Can someone point me in the right direction?

matt

Answer 1

Hi @Matthew Armshaw ,

Welcome to Microsoft Q&A!

I am trying to add a ContentDialog item to UWP Blank App (C++/WinRT) project. With a fresh project of this type I choose Add New Item > XAML > ContentDialog.

The ContentDialog template you choose in Visual Studio generates C++/CX code, which is not C++/WinRT. It is recommended to add ContentDialog via code in C++/WinRT project.

using namespace winrt::Windows::UI::Xaml::Controls;

 ContentDialog dialog;
 dialog.Title(box_value(L"Error"));
 dialog.Content(box_value(L"Please check and try again."));
 dialog.CloseButtonText(L"OK");
 dialog.ShowAsync();

Thank you.

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