private async void FillChildNodesCollections()
{
Task <string[]> fileTask = Task.Run(() => {
try {
return(Directory.GetFiles(Value.ElementPath));
} catch (IOException) { } catch (UnauthorizedAccessException) { };
return(new string[0]);
});
Task <string[]> directoryTask = Task.Run(() => {
try {
return(Directory.GetDirectories(Value.ElementPath));
} catch (IOException) { } catch (UnauthorizedAccessException) { };
return(new string[0]);
});
string[] files = await fileTask;
string[] directories = await directoryTask;
await App.Current.Dispatcher.BeginInvoke((Action)(() => {
foreach (var file in files)
{
ChildFileNodes.Add(new FileTreeNode(Tree, this, new SFMFile(file)));
}
foreach (var directory in directories)
{
ChildDirectoryNodes.Add(new FileTreeNode(Tree, this, new SFMDirectory(directory)));
}
}));
}
private void AddChildToNode(IFileSystemElement element)
{
FileTreeNode nwNode = new FileTreeNode(Tree, this, element);
if (nwNode.IsDirectory)
{
ChildDirectoryNodes?.Add(nwNode);
}
else
{
ChildFileNodes?.Add(nwNode);
}
}
internal async void AddElementsInDispatcher(IFileSystemElement[] element)
{
await App.Current.Dispatcher.BeginInvoke((Action)(() => {
foreach (var elem in element)
{
if (elem.ElementType == FileSystemFacade.ElementType.Directory)
{
ChildDirectoryNodes.Add(new SearchNode(Tree as SearchTree, this, elem));
}
else
{
ChildFileNodes.Add(new SearchNode(Tree as SearchTree, this, elem));
}
}
}));
}
internal void UpdateSelf()
{
if (!IsDirectory)
{
return;
}
ChildrenInitialized = false;
foreach (var child in ChildDirectoryNodes)
{
child.Dispose();
}
ChildDirectoryNodes.Clear();
foreach (var child in ChildFileNodes)
{
child.Dispose();
}
ChildFileNodes.Clear();
LoadChildren();
}
internal void DisposeObservableCollections()
{
if (ChildDirectoryNodes != null)
{
foreach (var child in ChildDirectoryNodes)
{
child.Dispose();
}
try {
ChildDirectoryNodes.Clear();
} catch (NotSupportedException) { }
}
if (ChildFileNodes != null)
{
foreach (var child in ChildFileNodes)
{
child.Dispose();
}
try {
ChildFileNodes.Clear();
} catch (NotSupportedException) { }
}
}