private void RebuildTree()
{
treeFolders.Clear();
treeView.Root.Children.Clear();
// Create and add nodes to dictionary
foreach (var folder in AppState.Folders.Values)
{
var vmFolder = new SubscriptionFolderViewModel(folder);
var tvFolder = new SortedTreeViewNode <SubscriptionItemViewModelBase, string>(vmFolder);
treeFolders.Add(folder.Id, tvFolder);
}
// Parent all the nodes
foreach (var pair in treeFolders)
{
GetParentFolder(pair.Value.Data.ParentId).Children.Add(pair.Value);
}
// Create subscription leafs
foreach (var sub in AppState.Subscriptions.Values)
{
AddSubscription(sub);
}
}
private void Folders_DictionaryChanged(object sender, DictionaryChangedEventArgs <int, ApiSubscriptionFolder> e)
{
if (e.Action == NotifyCollectionChangedAction.Reset || e.Action == NotifyCollectionChangedAction.Replace)
{
RebuildTree();
}
else
{
foreach (var oldItem in e.OldItems)
{
RemoveFolder(oldItem.Value);
}
// Add all the folders first
foreach (var newItem in e.NewItems)
{
var vmFolder = new SubscriptionFolderViewModel(newItem.Value);
var tvFolder = new SortedTreeViewNode <SubscriptionItemViewModelBase, string>(vmFolder);
treeFolders.Add(newItem.Key, tvFolder);
}
// And then parent them
foreach (var newItem in e.NewItems)
{
var tvFolder = treeFolders[newItem.Key];
GetParentFolder(tvFolder.Data.ParentId).Children.Add(tvFolder);
}
}
StateHasChanged();
}