How to perform a generic insert in entity framework?

Question

I want to perform a generic insert in entity framework. This is what I wrote -

static public void Insert<T>(MyEntities DataContext, T obj) where T : class
        {
            try
            {
                DataContext.AddObject(DataContext,obj);
                DataContext.SaveChanges();
            }
            catch (Exception e)
            {
                throw new Exception("Problems adding object" + e);
            }
        }

But as you can see the AddObject method is not what i want...it gives exception as it expects an enitysetname I want to pass in the object and then add that object to my database. But I cannot do AddtoObjectName() as I dont know the object. Can anyone point me in the right direction here..

Answer 1

In EF 4 you can do:

var os = DataContext.CreateObjectSet<T>();
os.AddObject(obj);
DataContext.SaveChanges();

And please remove the stack-eating try/catch.