Xaml UI Designer is inactive for wpf projects in .net core 3.0

Question

I have updated Visual Studio 2019 to version 16.3 which can support .Net Core 3 stable version.

After creating the first WPF app supported by .Net Core 3, the desig

Answer 1

Try “Tools” > “Options” > “Environment” > “Preview Features” and check the option “Use previews of the .NET SDK”. Then restart Visual Studio. (https://developercommunity.visualstudio.com/content/problem/745513/xaml-designer-does-not-load-in-visual-studio-2019.html)