private void OnPageLoaded(object sender, RoutedEventArgs e)
        {
            AdministrationClass.OpenNewModuleEntry(AdministrationClass.Modules.PlannedWorks);
            NotificationManager.ClearNotifications(AdministrationClass.Modules.PlannedWorks);

            if (_firstTimePageRun)
            {
                var backgroundWorker = new BackgroundWorker();
                backgroundWorker.DoWork += (o, args) =>
                {
                    _firstTimePageRun = false;
                    FillData();
                };
                backgroundWorker.RunWorkerCompleted += (o, args) =>
                {
                    BindingData();
                    SetDateProperties();
                    SetAccessEnable(_fullAccess);
                    OnPlannedWorksDataGridSelectionChanged(null, null);

                    var mainWindow = Application.Current.MainWindow as MainWindow;
                    if (mainWindow != null)
                    {
                        mainWindow.HideWaitAnnimation();
                    }
                };

                backgroundWorker.RunWorkerAsync();
            }
            else
            {
                _taskClass.Fill(_dateFrom, _dateTo);
                RefillInfo();

                var mainWindow = Application.Current.MainWindow as MainWindow;
                if (mainWindow != null)
                {
                    mainWindow.HideWaitAnnimation();
                }
            }
        }
        private void SetRequestResponsibilities(DataRowView drv)
        {
            if (drv == null)
            {
                TechnologyProblemResponsibilitiesItemsControl.ItemsSource = null;
                return;
            }

            var globalId = drv["GlobalID"].ToString();

            _taskClass.Fill(globalId);
            TechnologyProblemResponsibilitiesItemsControl.ItemsSource =
                _taskClass.Performers.Table.AsDataView();
        }