Visualsvn move C# class file to classlibrary

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C#

ASP.NET

WebForms

SVN

versioning

I have an ASP.Net Web Forms project under which the BO, BL, DA class files are stored in the App_Code folder. I just recently added 3 class libraries to the project namely(projectBO, projectBL, projectDA)

I use VisualSVN for version control with visual studio 2012.
I want to move the class files with version history from the App_Code to the respective class libraries.

How do i achieve this?

What I have tried:

I tried copying the .cs file to the class library folder. But the history is lost.