public FolderTreeViewModel()
{
var drives = Directory.GetLogicalDrives();
foreach (var item in drives)
{
var treeItem = new DirectoryItemViewModel(item.Remove(item.Length - 1), null);
treeItem.PropertyChanged += TreeItemPropertyChanged;
treeItem.ItemAdded += TreeItemItemAdded;
treeItem.ItemRemoved -= TreeItemItemRemoved;
this._treeRoot.Add(treeItem);
}
}
private void TreeItemPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName != "IsSelected")
{
return;
}
var treeItem = sender as DirectoryItemViewModel;
if (this._selectedTreeItem != null && this._selectedTreeItem != treeItem)
{
this._selectedTreeItem.IsSelected = false;
}
this._selectedTreeItem = treeItem;
if (treeItem == null)
{
SelectedPath = string.Empty;
return;
}
SelectedPath = treeItem.FullPath ?? string.Empty;
}