Set file to be opened automatically when opening a C# solution in Visual Studio

Set file to be opened automatically when opening a C# solution in Visual
Studio

I changed the name of my folder which holds my project. Now when i open
the project in Visual Studio, no files open automatically. It is important
that i submit this project very professionally. Is there a way that i can
make my Form.cs file show automatically in VS when the project is opened,
as it does by default if you do not change the project folder name?