private void FolderCollapsed(object sender, RoutedEventArgs e)
{
TreeViewItem item = (TreeViewItem)sender;
AssetTag tag = (AssetTag)item.Tag;
if (tag.Type != AssetType.DRIVE)
{
AssetType type;
if (item.IsExpanded)
{
type = AssetType.FOLDER_EXPANDED;
}
else
{
type = AssetType.FOLDER;
}
//update element accordingly
//Already searched recursively, just set tag
item.Tag = new AssetTag(type, ((AssetTag)item.Tag).Path);
((UIElement)item).Dispatcher.Invoke(new Action(() => { }), DispatcherPriority.Render);
}
}
private void SubItem_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
TreeViewItem item = (TreeViewItem)sender;
AssetTag tag = (AssetTag)item.Tag;
if (System.IO.File.Exists(tag.Path))
{
Process fileopener = new Process();
fileopener.StartInfo.FileName = "explorer";
fileopener.StartInfo.Arguments = "\"" + tag.Path + "\"";
fileopener.Start();
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
AssetTag tag = (AssetTag)value;
switch (tag.Type)
{
case AssetType.DRIVE:
return("pack://application:,,,/res/images/icons/hard_drive.png");
case AssetType.FOLDER:
return("pack://application:,,,/res/images/icons/folder.png");
case AssetType.FOLDER_EXPANDED:
return("pack://application:,,,/res/images/icons/folder_open.png");
case AssetType.FILE:
return("pack://application:,,,/res/images/icons/file.png");
}
//default
return("pack://application:,,,/res/images/icons/folder.png");
}
private void FolderExpanded(object sender, RoutedEventArgs e)
{
TreeViewItem item = (TreeViewItem)sender;
AssetTag tag = (AssetTag)item.Tag;
if (tag.Type != AssetType.DRIVE)
{
AssetType type;
if (item.IsExpanded)
{
type = AssetType.FOLDER_EXPANDED;
}
else
{
type = AssetType.FOLDER;
}
//update element accordingly
//Already searched recursively, just set tag
item.Tag = new AssetTag(type, ((AssetTag)item.Tag).Path);
((UIElement)item).Dispatcher.Invoke(new Action(() => { }), DispatcherPriority.Render);
}
if (item.Items.Count == 1 && item.Items[0] == null)
{
item.Items.Clear();
try
{
foreach (string s in System.IO.Directory.GetDirectories(tag.Path))
{
//Folder (sub-directories)
TreeViewItem subItem = new TreeViewItem();
subItem.Header = s.Substring(s.LastIndexOf("\\") + 1);
subItem.Tag = new AssetTag(AssetType.FOLDER, s);
subItem.Items.Add(null);
subItem.Expanded += new RoutedEventHandler(FolderExpanded);
subItem.Collapsed += new RoutedEventHandler(FolderCollapsed);
item.Items.Add(subItem);
}
foreach (string s in System.IO.Directory.GetFiles(tag.Path))
{
//Files cannot be nested
TreeViewItem subItem = new TreeViewItem();
subItem.Header = s.Substring(s.LastIndexOf("\\") + 1);
subItem.Tag = new AssetTag(AssetType.FILE, s);
item.Items.Add(subItem);
//Add handler for opening files
subItem.MouseDoubleClick += SubItem_MouseDoubleClick;
}
}
catch (Exception ex)
{
}
}
}
