WPF : Referencing Assembly with Forms Controls does not work ?

Question

Hi guys

I've got a Problem. I need to use some classes from another Library DLL, that has been written a year ago, in my WPF Project. Therefore I reference this Library in my Project. But when I want to rebuild my solution I always get some warnings that my assembly cannot be resolved because it uses some dependencys that do not match my targeted framework.

This is one of the Errors

The referenced assembly "istis.AcademyOne.ClassLibrary, Version=2.1.0.1, Culture=neutral, PublicKeyToken=fd9f6afaca722199, processorArchitecture=MSIL" could not be resolved because it has a dependency on "System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" which is not in the currently targeted framework ".NETFramework,Version=v4.0,Profile=Client". Please remove references to assemblies not in the targeted framework or consider retargeting your project. A1RevisionControls

Does anyone know a workaround or a solution so I can keep the original DLL and use it in my WPF Application ?

EDIT : Ok I solved the Problem switching my Target Framework of my WPF Solution to .NET Framework 4.0 instead of Framework 4.0 Client Profile.

Answer 1

One method would be to put the old dll behind a WCF facade. Another option would be to include the old dll in a new project, and use some sort of inter-process communication like named pipes to talk between the two.

Or you could just share the class files with a new .Net 4 class project, and reference that new class library. This example and this example talk about doing it in Silverlight and/or WCF, but the principle is exactly the same.