Question

I am writing a C#.Net windows application using EF for communicating with SQL Express. I have a Contacts table in my application. For editing a Contact I have called a new windows form by ShowDialogue() method and used ApplyCurrentValue method. In this form if I get the list of my contacts (using db.Contacts.ToList() method), the changes could be seen but when I close the form and want to refresh the gridview which exist in the main form, I cannot see the changes unless I restart the whole application.

here is the code for showing a new form:

NewContactForm contact = new NewContactForm();
        contact.TopLevel = true;
        contact.ShowInTaskbar = false;
        contact.ShowDialog();
        RefreshForm();
        FillGridView();

I have changed the contactToEdit object’s properties and want to save changes. So:

public void UpdateContact(Contact contactToEdit)
    {
        db.Contacts.ApplyCurrentValues(contactToEdit);
        db.SaveChanges();
    }

Now I want to show the list of contacts using this code which is in the FillGridView():

db.Contacts.ToList();

Am I missing some code? I even used db.AcceptAllChanges() but useless

Answer 1

Ok .. that is the solution which worked for me

In my main form (parent scope) I refreshed the modified object using this simple code:

db.Refresh(System.Data.Objects.RefreshMode.StoreWins, contactToEdit)

and everything works nice ever after!