Can I Trust LoadOperation.Completed event

Question

Suppose that we have the code shown below,

LoadOperation lop=_dsrvX.Load(_dsrvX.GetUserDetails(userID));
lop.Completed +=(s,a)=>
{
  Debug.WriteLine("Completed but,
           First I load it then I registered Completed evet!");
}

I see this type code everywhere so I wonder is it right?

As I know when you call domainService methods this automatically fills domain service object's related EntitySet.

Suppose that LoadOperation(Can be Submit,Invoke ops.) completed rapidly and when I passed to the next line where I register completed event everything has done.Is it possible? It seems hard to achive that but can you give me 100% guarantee?

If you can't guarantee that I'm asking if there is a method of calling OperationBase objects manually?

Any comment will be appreciated.

Answer 1

Well, this is a crazy world, I would not give 100% guarantee of anything :P - But I do not think it should be a problem. If this bothers you, you can pass the callback as a parameter, like this:

_dsrvX.Load(_dsrvX.GetUserDetails(userID), userDetailsCallBack, null);

(...)

void userDetailsCallBack(LoadOperation<UserDetails> op)
{
   //do anything with the results
}

or, to simplify even further:

_dsrvX.Load(_dsrvX.GetUserDetails(userID), (op)=>
   {
       //do anything with the results  
   }, null);