Question - .net5 about desktopnotifications

[maxkatz6]

Yes, it's a correct place for questions.

Have you tried to use it? .NET Core 3.1 is compatible with .NET 5.

[pld32]

I just tried and getting some errors in DesktopNotifications.Windows WindowsNotificationManager.cs.

Attached is the error list.

DeskTopNotificationsErrors.txt

[pr8x]

Which version of Windows are you on? Can you create a repro?

[maxkatz6]

I see. Windows package uses Microsoft.Toolkit.Uwp.Notifications, which uses legacy WinRT COM Interop, which was removed from .NET 5. Not sure if Microsoft.Toolkit.Uwp.Notifications was updated to work with newer CsWinRT COM Interop, but if it does - multitarget for "net5.0;netcoreapp3.1" in this package should work. @pr8x

[pr8x]

It seems that with .NET 5 I cannot reference Microsoft.Toolkit.Uwp.Notifications anymore but instead have to use their "Target Framework Moniker" (https://docs.microsoft.com/en-us/windows/apps/desktop/modernize/desktop-to-uwp-enhance#net-5-use-the-target-framework-moniker-option)

Tried net5.0-windows10.0.17763.0 but that doesn't support some stuff like ToastContentBuilder or ToastNotificationManagerCompat.

EDIT: @maxkatz6 Beat me to it :) Yeah I can probably dual-target here, but I might need to find some replacements for the missing APIs.

[maxkatz6]

Related https://blogs.windows.com/windowsdeveloper/2021/03/16/announcing-windows-community-toolkit-v7-0/
And updated https://docs.microsoft.com/en-us/windows/apps/design/shell/tiles-and-notifications/send-local-toast?tabs=uwp

Tried net5.0-windows10.0.17763.0 but that doesn't support some stuff like ToastContentBuilder or ToastNotificationManagerCompat

Yes, something might be missed

[derekantrican]

Adding to the convo, I just tried to reference the same library for .NET 5 today and get these build errors:

DesktopNotifications.Windows.dll cannot be referenced because it uses built-in support for WinRT, which is no longer supported in .NET 5 and higher. An updated version of the component supporting .NET 5 is needed. For more information, see https://aka.ms/netsdk1149

Microsoft.Toolkit.Uwp.Notifications.dll cannot be referenced because it uses built-in support for WinRT, which is no longer supported in .NET 5 and higher. An updated version of the component supporting .NET 5 is needed. For more information, see https://aka.ms/netsdk1149