private void LoadRoots()
{
//Get all expanded nodes
List <ITreeItem> oldExpanded = new List <ITreeItem>();
if (ExpandedNodes.Count > 0)
{
foreach (ITreeItem item in ExpandedNodes)
{
oldExpanded.Add(item);
}
oldExpanded = new List <ITreeItem>(oldExpanded.OrderBy(x => x.Level));
}
//Clean tree
foreach (ITreeItem item in nodeDict.Values)
{
UnSubscribeEvents(item);
}
nodeDict.Clear();
ClearTree();
//Get drives
ActionResult <IEnumerable <DriveInfo> > diResult = DirectoryCrawler.GetDrivesReady();
if (diResult.Successful)
{
foreach (DriveInfo item in diResult.Result)
{
DriveTreeItemViewModel vm = new DriveTreeItemViewModel(item);
AddToTree(vm);
nodeDict.Add(vm.Path.ToLower(), vm);
vm.Expanded += OnVmExpanded;
vm.Collapsed += OnVmCollapsed;
//create children for root nodes
CreateSubFolders(vm);
}
}
//else
//{
// logger.Log(LogFactory.CreateWarningMessage(diResult.GetComments()));
// return;
//}
if (oldExpanded.Count > 0)
{
foreach (ITreeItem item in oldExpanded)
{
if (nodeDict.ContainsKey(item.Path.ToLower()))
{
nodeDict[item.Path.ToLower()].IsExpanded = true;
}
}
}
}
private async Task LoadRootsAsync()
{
//Get all expanded nodes
List <ITreeItem> oldExpanded = new List <ITreeItem>();
if (ExpandedNodes.Count > 0)
{
foreach (ITreeItem item in ExpandedNodes)
{
oldExpanded.Add(item);
}
oldExpanded = new List <ITreeItem>(oldExpanded.OrderBy(x => x.Level));
}
//Clean tree
foreach (ITreeItem item in nodeDict.Values)
{
UnSubscribeEvents(item);
}
nodeDict.Clear();
ClearTree();
//Get drives
IEnumerable <DriveInfo> diResult = await LocalDriveCrawler.GetReadyDrivesAsync();
foreach (DriveInfo item in diResult)
{
DriveTreeItemViewModel vm = new DriveTreeItemViewModel(item);
AddToTree(vm);
nodeDict.Add(vm.Path.ToLower(), vm);
vm.Expanded += OnVmExpanded;
vm.Collapsed += OnVmCollapsed;
//create children for root nodes
CreateSubFolders(vm);
}
if (oldExpanded.Count > 0)
{
foreach (ITreeItem item in oldExpanded)
{
if (nodeDict.ContainsKey(item.Path.ToLower()))
{
nodeDict[item.Path.ToLower()].IsExpanded = true;
}
}
}
}