private async void EntityChanged(object sender, EntityChangedEventArgs e) {
if (_ignoreEntityChanged) { return; }
// Save on propertyChanged (after brief delay)
if (e.Action == EntityAction.PropertyChange) {
try {
CancelDelay();
// Delay 1 second to let more changes (keystrokes) arrive
// then save if there are still unsaved changes.
_saveChangeTokenSource = new CancellationTokenSource();
await Task.Delay(1000, _saveChangeTokenSource.Token);
_saveChangeTokenSource = null;
if (HasChanges) { await Save(); }
}
catch (TaskCanceledException) { }
catch (Exception ex) { _logger.Error(ex); }
}
// Save Added or Deleted entity immediately
else if (e.Action == EntityAction.EntityStateChange &&
((e.EntityAspect.EntityState & ADD_DELETE) != 0)) {
CancelDelay();
try {
await Save();
// ReSharper disable once EmptyGeneralCatchClause
// already handled within Save
} catch (Exception) {
}
}
}
// Handle change in status of any entity
private void _em_EntityChanged(object sender, EntityChangedEventArgs e) {
var todo = e.Entity as TodoItem;
Console.WriteLine("Changed: " + todo.Description + " " + e.Action + " state = " + e.EntityAspect.EntityState);
if (!_autoSaveEnabled) return;
if (ValidateEntity(e.Entity)) {
// Note: Newly-added entities are saved in the AddNewTodo() method so they don't need to be saved here
if (e.Action == EntityAction.EntityStateChange && e.EntityAspect.EntityState.IsDeletedOrModified()) {
SaveChanges();
}
}
SelectedItem = null;
}