public void Update() { List <AccountModel> accounts = new List <AccountModel>(); DGR_Accounts.ItemsSource = null; using (var db = new ResourceModel()) { var acc = db.GetAccount(); foreach (var a in acc) { accounts.Add(new AccountModel() { AccountID = a.AccountID, Login = a.Login, Type_Account = a.Type_Account, LastNamePeople = a.LastNamePeople, Passwords = db.GetPassword(ID) }); } } DGR_Accounts.ItemsSource = accounts; }