service pattern on EF.cs

public partial class Category(){
	public Category(){}
	
	// THESE COME FROM LINQ CLASS
	//public int Id { get; set; }
        //public string Name { get; set; }
}
public class CategoryService{
	public CategoryService(){}
	
	public static IEnumerable<Category> GetAllCategories()
    {
        using (var context = new ShedEntities())
        {
            return context.Categories.ToList();
        }
    }
}