private void RemoveItem(FolderViewModel folder)
{
folder.OnOpened -= OnItemOpened;
folder.OnDeleted -= OnItemDeleted;
SubDirectories.Remove(folder);
AllItems.Remove(folder);
}
private void setUpBackgroundWorker()
{
bgWorker_loadSub = new BackgroundTaskManager <DispatcherNotifiedObservableCollection <DirectoryTreeItemViewModel> >(
() =>
{
IsLoading = true;
return(getDirectories());
},
(result) =>
{
List <DirectoryTreeItemViewModel> delList = new List <DirectoryTreeItemViewModel>(SubDirectories.ToArray());
List <DirectoryTreeItemViewModel> addList = new List <DirectoryTreeItemViewModel>();
foreach (DirectoryTreeItemViewModel model in result)
{
if (delList.Contains(model))
{
delList.Remove(model);
}
else
{
addList.Add(model);
}
}
foreach (DirectoryTreeItemViewModel model in delList)
{
SubDirectories.Remove(model);
}
foreach (DirectoryTreeItemViewModel model in addList)
{
SubDirectories.Add(model);
}
HasSubDirectories = SubDirectories.Count > 0;
IsLoading = false;
});
}