Using System.Windows.Media in a Blazor project

Question

User952791441 posted

Anytime I try and instantiate a class that uses System.Windows.Media I get the following error:

Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer: Warning: Unhandled exception rendering component: Could not load file or assembly 'PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

System.IO.FileNotFoundException: Could not load file or assembly 'PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.
File name: 'PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'
   at Report.Pages.MyReport.OnInitialized()
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

Is there a way around this? I'd like to continue using my class library without changing too much.

Answer 1

User475983607 posted

The System.Windows.Media is a WPF API.  Blazor runs in the browser not a WPF form.

Answer 2

User952791441 posted

Makes sense. I went through my library and changed everything over to System.Drawing and created a converter for my WPF projects. Seems to work now. Thanks.