Declaring Entity FrameWork Contexts with using

Question

Which is the Best Practise in Declaring Entity FrameWork Contexts

function()
{
    DBContext context = new DBContext();

    //Entity code

    return ;
}
         


        

Answer 1

Your request will be executed toward the datasource as soon as you'll call .ToList() method.

That's why you cannot perform .ToList() in your Controller as your context as been disposed at the end of the using block.

In your DL method, just do something like:

IEnumerable function()
{
    using(DBContext context = new DBContext())
    {
      return something.ToList();
    }
}

and in your Controller you'll get an IEnumerable of Something:

var mySomethingIEnumerable = DL.Function();

Hope that helps!