public void DatabaseTests()
        {
            DatabaseManager database = new DatabaseManager();
            List<Contact> contactList;

            //Contact List Populated
            contactList = database.retrieveContacts();
            Assert.IsNotNull(contactList);
            foreach (Contact contact in contactList)
            {
                Assert.IsNotNull(contact);
            }
        }
        private void loadContacts()
        {
            DatabaseManager database = new DatabaseManager();
            contactList = database.retrieveContacts();

            updateGridView();
        }