private void _LoadDirectory(string directoryPath)
{
ProgressBar1.IsIndeterminate = true;
this.usingFileSystem = true;
var directory = new Control.DirectoryInfo(directoryPath, Path.GetFileName(directoryPath));
directory.Root = PaneGroup1;
directory.LoadChildren();
this.treeView.ItemsSource = (directory.Items);
ProgressBar1.IsIndeterminate = false;
//ExampleHelper.PopulateTreeView(this.treeView, items);
}
private void TreeView_LoadOnDemand(object sender, RadRoutedEventArgs e)
{
e.Handled = true;
RadTreeViewItem expandedItem = e.OriginalSource as RadTreeViewItem;
if (expandedItem == null)
{
return;
}
Control.DirectoryInfo directory = expandedItem.Item as Control.DirectoryInfo;
if (directory != null && this.usingFileSystem)
{
directory.LoadChildren();
if (directory.Items.Count == 0)
{
expandedItem.IsLoadOnDemandEnabled = false;
}
}
}