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();
}