void client_GetSalaryStandardItemPagingCompleted(object sender, GetSalaryStandardItemPagingCompletedEventArgs e) { if (e.Error == null) { if (e.Result != null) { DtGrid.ItemsSource = e.Result.ToList(); dataPager.PageCount = e.pageCount; } else { DtGrid.ItemsSource = null; } } else { DtGrid.ItemsSource = null; } RefreshUI(RefreshedTypes.ProgressBar); }