public void OnBeforeExpand(CommandRunner runner, bool populateChildren)
{
TreeView tv = this.TreeView;
if (!IsRoot)
{
if (tv != null && tv.InvokeRequired)
{
tv.Invoke((Action)(() => {
this.Nodes.Clear();
SetExpandedImageIndex(this);
}));
}
else
{
this.Nodes.Clear();
SetExpandedImageIndex(this);
}
}
string path = this.FullPath.Replace("//", "/");
if (!path.EndsWith("/"))
{
path += "/";
}
if (populateChildren && this.Nodes.Count == 0)
{
List <DroidExplorer.Core.IO.FileSystemInfo> fileSystemInfoList = runner.ListDirectories(path);
if (tv != null && tv.InvokeRequired)
{
tv.Invoke((Action)(() => {
this.AddChildTreeNodes(this.Nodes, fileSystemInfoList);
}));
}
else // no need to invoke
{
AddChildTreeNodes(this.Nodes, fileSystemInfoList);
}
}
}