Thanks for your answer. Apparently, even the Reload is not enough (check http://stackoverflow.com/questions/5799737/entity-framework-4-1-dbset-reload). I have decided to reinitialize my context.


>Entity framework internally caches entities it retrieves in its object graph, which means you won't see changes... until you dump the context or explicitly reload.
>
>There are a couple of ways around this.
>
>I see you're using MergeOption.OverwriteChanges which *should* actually be enough to force the query to be re-loaded. But apparently that's not working for you?
>
>The easiest is probably to make sure you always query on a new DbConecxt instance. Make sure you recreate a new context rather than re-using an existing context.
>
>Another option is to use context.Entry(entity).Reload() which forces an individual entity to be reloaded from disk.
>
>Depending on your scenario the latter can be more efficient as it's actually just requerying a single record not the whole set.
>
>+++ Rick ---
>
>>I am currently testing an application using EF4.3 containing pre-compiled queries.
>>
>>

>>                    mqryClientByID = Function(ctx As FGLMainDataEntities, pID As Integer)
>>                                         Return (ctx.Clients.
>>                                                 Include("EMails").
>>                                                 Where("it.ID = " + pID.ToString()
>>                                                ).Execute(MergeOption.OverwriteChanges).SingleOrDefault())
>>                                     End Function
>>

>>
>>This basically get a client's data and his related email addresses.
>>
>>I just found that if I modify the emails directly in SSMS (simulating another user modifying records), I can see the modification whenever I re-execute my query with:
>>
>>

>>Dim currentClient = mqryClientByID.Invoke(mobjContext, pID)
>>

>>
>>But if I delete email addresses related to a client and I reload the client, the row is still shown in the grid.
>>
>>How can I tell EF to refresh data for real?