Add Support For .NET Core 3.0

[Keboo]

WPF will support .NET Core 3.0.

This is a parent issue for any compatibility issues that are raised.
https://blogs.msdn.microsoft.com/dotnet/2018/12/04/announcing-net-core-3-preview-1-and-open-sourcing-windows-desktop-frameworks/

[enizvk]

Any news or plans on this?

[steven62f]

Same question. Any news about support for .NET Core 3.0 ?

[jespersh]

Hi,

The only issue I currently have with porting this to netcoreapp3.0 is ShowMeTheXaml.
My last commit here https://github.com/jespersh/MaterialDesignInXamlToolkit removed all the ShowMeTheXaml (last elegantly, so all controls in a grid is a mess currently) for a quick revert once SMTX works.
So while it is entirely possible... The change most endangering is that this might not make .Net framework work (unless maybe 4.7.2)

[Keboo]

@jespersh that is great. If you want to get a PR open we can start looking at getting it merged. I have a preview NuGet for ShowMeTheXaml that is out that adds .Net Core 3.0 support as well.

[enizvk]

Awesome, Thanks! I just migrated my project to Core 3 and everything seems alright so far.

[josephwambura]

Got error

C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\Microsoft.Common.CurrentVersion.targets(3056,5): error MSB4216: Could not run the "GenerateResource" task because MSBuild could not create or connect to a task host with runtime "CLR4" and architecture "x86". Please ensure that (1) the requested runtime and/or architecture are available on the machine, and (2) that the required executable "C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\MSBuild.exe" exists and can be run. [C:\Users\User\source\repos\MaterialDesignInXamlToolkit\MainDemo.Wpf\MaterialDesignDemo.csproj]
C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\Microsoft.Common.CurrentVersion.targets(3056,5): error MSB4216: Could not run the "GenerateResource" task because MSBuild could not create or connect to a task host with runtime "CLR4" and architecture "x86". Please ensure that (1) the requested runtime and/or architecture are available on the machine, and (2) that the required executable "C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\MSBuild.exe" exists and can be run. [C:\Users\User\source\repos\MaterialDesignInXamlToolkit\MahMaterialDragablzMashUp\MahAppsDragablzDemo.csproj]
18 Warning(s)
2 Error(s)

[josephwambura]

For UWP:

C:\Users\User\source\repos\MaterialDesignInXamlToolkit\MaterialDesignThemes.Uwp\MaterialDesignThemes.Uwp.csproj(237,3): error MSB4019: The imported project "C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\Microsoft\WindowsXaml\v16.0\Microsoft.Windows.UI.Xaml.CSharp.targets" was not found. Confirm that the path in the declaration is correct, and that the file exists on disk.
C:\Users\User\source\repos\MaterialDesignInXamlToolkit\MainDemo.Uwp\MainDemo.Uwp.csproj(142,3): error MSB4019: The imported project "C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\Microsoft\WindowsXaml\v16.0\Microsoft.Windows.UI.Xaml.CSharp.targets" was not found. Confirm that the path in the declaration is correct, and that the file exists on disk.
3 Warning(s)
2 Error(s)

[jespersh]

@dansef what commands are you building with?

[Keboo]

Closing as the work for this has been done. For those wishing to try this out there are a few things to know.

1. This is only available with the 3.0.0 preview NuGet packages
2. MahApps is not currently supported with .NET Core 3.0, only the MaterialDesignThemes and MaterialDesignColors NuGet packages are expected to work. MahApps support will be forthcoming.