private bool Unregister()
{
//Careful here - events have to be unregistered on the same
//thread they were registered on...hence the use of the
//Queued Task
QueuedTask.Run(() =>
{
//One kvp per layer....of which there is only one in the sample
//out of the box but you can add others and register for events
foreach (var kvp in _rowevents)
{
RowCreatedEvent.Unsubscribe(kvp.Value[0]);
RowChangedEvent.Unsubscribe(kvp.Value[1]);
RowDeletedEvent.Unsubscribe(kvp.Value[2]);
kvp.Value.Clear();
}
_rowevents.Clear();
//Editing and Edit Completed.
EditCompletingEvent.Unsubscribe(_editevents[0]);
EditCompletedEvent.Unsubscribe(_editevents[1]);
_editevents.Clear();
});
return(false);
}
private void UnwireEvents()
{
if (_eventToken != null)
{
EditCompletedEvent.Unsubscribe(_eventToken);
}
}
private void onProjectClosed(ProjectEventArgs obj)
{
//Unsubscribe from events
EditCompletedEvent.Unsubscribe(onEditCompleted);
QueuedTask.Run(() =>
{
RowCreatedEvent.Unsubscribe(_rowCreateToken);
RowDeletedEvent.Unsubscribe(_rowDeleteToken);
RowChangedEvent.Unsubscribe(_rowChangedToken);
});
}
private async void OnMapClosed(MapClosedEventArgs args)
{
LayersAddedEvent.Unsubscribe(OnLayersAdded);
LayersMovedEvent.Unsubscribe(OnLayersMoved);
LayersRemovedEvent.Unsubscribe(OnLayersRemoved);
MapMemberPropertiesChangedEvent.Unsubscribe(OnMapMemberPropertiesChanged);
TOCSelectionChangedEvent.Unsubscribe(OnTocSelectionChanged);
ActiveToolChangedEvent.Unsubscribe(OnActiveToolChangedEvent);
EditCompletedEvent.Unsubscribe(OnEditCompleted);
DrawCompleteEvent.Unsubscribe(OnDrawCompleted);
DrawStartedEvent.Unsubscribe(OnDrawStarted);
while (Count >= 1)
{
VectorLayer vectorLayer = this[0];
await RemoveLayer(vectorLayer);
}
}
protected override Task OnToolDeactivateAsync(bool hasMapViewChanged)
{
_msg.VerboseDebug("OnToolDeactivateAsync");
MapPropertyChangedEvent.Unsubscribe(OnPropertyChanged);
MapSelectionChangedEvent.Unsubscribe(OnMapSelectionChanged);
EditCompletedEvent.Unsubscribe(OnEditCompleted);
try
{
HideOptionsPane();
return(QueuedTask.Run(() => OnToolDeactivateCore(hasMapViewChanged)));
}
catch (Exception e)
{
HandleError($"Error in tool deactivation ({Caption}): {e.Message}", e, true);
}
return(Task.CompletedTask);
}
