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How to build library with WPF forms

开发者 https://www.devze.com 2023-01-30 05:41 出处:网络
Is it possible to build a Class Library dll which also includes WPF forms? When I tr开发者_运维问答y to build one I get following errors:

Is it possible to build a Class Library dll which also includes WPF forms? When I tr开发者_运维问答y to build one I get following errors:

Error 1 Library project file cannot specify ApplicationDefinition element.

Error 2 The project file contains a property value that is not valid.

If I set my project as Windows Application it compiles & runs tho. Is there a way to get arround this? I'm using VS2010 & C# .NET 4.0 if that might be of any interest to you guys.

Thanks


Choose WPF Custom Control Library or WPF User Control Library when creating/adding new project to your solution.


Change the build action of your UserControl from ApplicationDefinition to Page.


Remove the App.xaml and App.xaml.cs in your WPF Project. Then you will be able to run the project with an output type of Class Library.


This is also occur when we copy paste an Image to ClassLibrary Project.

Change the Build Action Property of that image to resources


Extending @2493490 answer.

Right click on the app.xaml file and exclude it from the project. Change the project output type to in project properties to Class Library. Click on the run icon, the solution will successfully build but will not run/execute any code. A error message will be displayed explaining as such.


problems after copying XAML controls from WPF Application to class library

The first answer work for me. I changed App.xaml from ApplicationDefinition to Page and worked

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