[Question] How to use UnitOfWork?

[mahdi87gh]

Hi,
Thanks for your great work here. I have a question to ask. Here is my test project hierarchy :
-Solution
--Test.DomainModel
-- Test.Repo
--Test.Api

In DomainModel class library just there are my entity models.
In Repo class library I added your nuget package and generated Repositories and unit of work.
In Api winApp I tried something like this code just for testing:

using (var db = new UnitOfWork())
            {
               var item = db.Barbers.GetById(textBox1.Text);
               MessageBox.Show(item.BarberName);
            }

It fails to run, Needs for a connection string in my Api project! Which is already defined in Repo and DomainModel projects. When I copy the connection string from these projects to Api project app.config file, I get error for Needing entityframework and system.data.sqlClient dlls . Why is like this. When I'm using a repository, shouldn't it handle these things?! I wish not to include entityFramework to my Api project. By the way could you upload a sample project ?