我有3个项目的Visual Studio解决方案。
顶层是.NET Framework 4.6.1控制台应用程序（项目A）。它取决于.NET Framework 4.6.1类库（项目B）。项目B依赖于.NET Standard 2.0类库（项目C）。
I have some code in Project C that uses System.Data.SqlClient (NuGet package version 4.6.1).
Due to the following known issue https://github.com/dotnet/sdk/issues/901 I have also added System.Data.SqlClient as a NuGet dependency to Project B (the .NET Framework Class Library).
This is Scenario 1, and when the solution is built, System.Data.SqlClient is copied to the /bin/Debug folder of Project A and the the application runs successfully.
The code for Scenario 1 is here …