private void PreviousImage() { currentIndex = currentIndex == 0 ? files.Count - 2 : currentIndex - 2; SwitchImage(); if (!paused) { timer.Restart(); } }
/// <summary> /// When any filter condition has changed restart the evaluation timer to defer /// the evaluation until the user has stopped typing. /// </summary> internal void OnFilterChanged() { if (!_isFilteringEnabled) { return; } // Ensure that no cell is in editing state, this would cause an exception when trying to change the filter! _dataGrid.CommitEdit(); // Commit cell _dataGrid.CommitEdit(); // Commit row if (_deferFilterEvaluationTimer == null) { var throttleDelay = _dataGrid.GetFilterEvaluationDelay(); _deferFilterEvaluationTimer = new DispatcherTimer(throttleDelay, DispatcherPriority.Input, (_, __) => EvaluateFilter(), Dispatcher.CurrentDispatcher); } _deferFilterEvaluationTimer.Restart(); }