How to access the Dispatcher from a .net Core 3.1 dll (WPF)

Question

I'm not able to apply both solution.

Solution of JBSnorro: Unable to find how to switch to "Microsoft.NET.Sdk.WindowsDesktop".
Solution of codevision: I use .net Core 3.1 instead of .net Core 3.0 and a .dll instead of .exe. The result is

Any idea how to access the Dispatcher from .net-core 3.1?

IMPORTANT Clemens solution works great. Also, by reloading the project directly from Visual Studio has the advantage to tell you more about the problem hidden in your .csproj file. I had unmatching UseWPF with UseWpf!

It [tells you](https://stackoverflow.com/a/58476275/11683) where. In the C# project file, csproj. — GSerg, Jan 15 '20 at 20:46
@GSerg, Tthanks a lot. I just realized that I had to open the .csproj file manually. But I got an error after I did the suggested solution...Perhaps because it is a dll or perhaps it is 3.1 instead of 3.0??? — Eric Ouellet, Jan 15 '20 at 20:57

score 5 · Accepted Answer · answered Jan 15 '20 at 21:13

5

The project file should look like this:

<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
    <PropertyGroup>
        <TargetFramework>netcoreapp3.1</TargetFramework>
        <UseWPF>true</UseWPF>
    </PropertyGroup>
</Project>

If the project is unloaded, use Reload Project from the content menu.

answered Jan 15 '20 at 21:13

Clemens

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Do you have any idea why we can't do that from VS GUI? – Eric Ouellet Jan 15 '20 at 21:21
1

I have done it that way. Choose either `WPF User Control Library (.NET Core)` or `WPF Custom Control Library (.NET Core)` as project template. – Clemens Jan 15 '20 at 21:23
thanks a lots, I use that pretty often. I just heard that it also served a friend! – Eric Ouellet Oct 24 '20 at 02:02

Dams · Answer 2 · 2022-07-09T19:53:53.470

0

Since a visual studio update has broke my project file my side i decide post how this should be done in 2022.

just check this checkbox in project properties.

then visual studio should rewrite your project file and add the framework wpf to your reference automaticaly.

edited Jul 09 '22 at 19:53

answered Jul 09 '22 at 19:39

Dams

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How to access the Dispatcher from a .net Core 3.1 dll (WPF)

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