private async Task OnLayerRemovingAsync(LayersRemovingEventArgs e)
{
// todo daro: revise usage of Task
//await Task.Run(() =>
//{
foreach (IWorkList workList in _layerByWorkList
.Where(pair => e.Layers.Contains(pair.Value))
.Select(pair => pair.Key).ToList())
{
foreach (var observer in _observers)
{
observer.WorkListRemoved(workList);
}
List <WorkListObserver> emptyObservers = GetEmptyObservers();
foreach (var observer in emptyObservers)
{
UnregisterObserver(observer);
}
await QueuedTask.Run(() =>
{
// ensure folder exists before commit
EnsureFolderExists(GetLocalWorklistsFolder());
workList.Commit();
UnwireEvents(workList);
//UnregisterViewModel(workList);
_layerByWorkList.Remove(workList);
_registry.Remove(workList);
// Note daro: don't dispose work list here. Given the following situation.
// Remove work list layer would dispose the source geodatabase (in GdbItemRepository).
// Add work list layer again with same source geodatabase is going to throw an
// exception, e.g. on SetStatus
//workList.Dispose();
});
}
//});
}
private async Task OnLayerRemovingAsync(LayersRemovingEventArgs e)
{
await Task.Run(() =>
{
foreach (IWorkList worklist in GetAssociatedWorklists(e.Layers))
{
Unload(worklist);
// persist work list state
worklist.Commit();
// Note daro: don't dispose work list here. Given the following situation.
// Remove work list layer would dispose the source geodatabase (in GdbItemRepository).
// Add work list layer again with same source geodatabase is going to throw an
// exception, e.g. on SetStatus
//workList.Dispose();
}
});
}
