Read from App.config in a Class Library project
As stated in my comment, add the App.Config file to the main solution and not in the class library project.
class-library
Adding System.Web.Script reference in class library
The ScriptIgnoreAttribute class is in the System.Web.Extensions.dll assembly (Located under Assemblies > Framework in the VS Reference Manager). You have to add a reference to that assembly in your class library project. You can find this information at top of the MSDN page for the ScriptIgnoreAttribute class.
What is the difference between a class library and a framework
The distinguishing feature between a class library and a software framework is that in a framework, the flow of control is not determined by the user´s code, but by the framework. This is also known as Hollywood principle (don´t call us, we call you). By the way, there is also a nice Wikipedia article on … Read more
How to debug class library that called from external app?
Yes, you can do this with Visual Studio. You have two options: Configure your project to start the external program Open your DLL project. On the properties for the project, go to the Debug tab. Choose Start external program and give the path of the external program that will call your DLL, along with any … Read more
Cannot find Bitmap Class in Class Library (.NET Standard)
I’m the author of CoreCompat.System.Drawing. If you’re on .NET Core 2.0, I’d recommend you’d move to System.Drawing.Common instead, which is the Microsoft-maintained implementation of System.Drawing for .NET Core. If you’re on Linux or macOS, make sure to install libgdiplus. On macOS, run brew install mono-libgdiplus; on Linux your package manager should provide you with a … Read more
app.config for a class library
You generally should not add an app.config file to a class library project; it won’t be used without some painful bending and twisting on your part. It doesn’t hurt the library project at all – it just won’t do anything at all. Instead, you configure the application which is using your library; so the configuration … Read more
What is the difference between .NET Core and .NET Standard Class Library project types?
When should we use one over the other? The decision is a trade-off between compatibility and API access. Use a .NET Standard library when you want to increase the number of applications that will be compatible with your library, and you are okay with a decrease in the .NET API surface area your library can … Read more
How can I use external JARs in an Android project?
For Eclipse A good way to add external JARs to your Android project or any Java project is: Create a folder called libs in your project’s root folder Copy your JAR files to the libs folder Now right click on the Jar file and then select Build Path > Add to Build Path, which will … Read more
How to consume data provided by silverlight class library in a web page?
Your question is rather unclear. Best I can suggest is to implement a Portable Class Library – such libraries can be used both by Silverlight as well as regular .NET applications.