/// <summary> /// /// </summary> internal override ReturnResultBase Execute() { ReturnResultBase result = null; if (LocalDataviewManager.UserSorts != null) { TaskViews.ApplySort(LocalDataviewManager.UserSorts); } else { if (!KeepUserSort) { TaskViews.ApplySort(Task.RuntimeSorts); } } TaskViews.ApplyUserRangesAndLocates(); SetTaskMode(); if (RefreshMode == ViewRefreshMode.CurrentLocation) { InitCurrentPosition(); if (startPosition != null) { result = ExecuteRefreshAndKeepCurrentLocation(); if (result.Success) { LocalDataviewManager.UserGatewayLocates.Clear(); LocalDataviewManager.UserLocates.Clear(); LocalDataviewManager.UserSorts = null; } return(result); } } // clean the position cache LocalDataviewManager.Reset(); // Release the ViewMain cursor and re-prepare it. if (TaskViews.ViewMain != null) { TaskViews.ViewMain.ReleaseCursor(); TaskViews.ViewMain.Prepare(); } result = base.Execute(); if (result.Success) { DataviewSynchronizer.SetCurrentRecordByIdx(0); LocalDataviewManager.UserGatewayLocates.Clear(); LocalDataviewManager.UserLocates.Clear(); LocalDataviewManager.UserSorts = null; } return(result); }