public void LazyLoading(TreeView treeView, string path)
{
DirectoryInfo directory = new DirectoryInfo(path);
DirectoryInfo[] diArray = directory.GetDirectories();
Nodes tn = new Nodes();
foreach (DirectoryInfo direct in diArray)
{
treeView.Nodes.Add(tn.CreateTreeItem(direct));
}
FileInfo[] fileInDir;
try { fileInDir = directory.GetFiles(); }
catch { return; }
foreach (FileInfo file in fileInDir)
{
TreeNode item = new TreeNode(file.Name);
treeView.Nodes.Add(item);
}
}
public void AfterExpand(TreeViewEventArgs e)
{
TreeNode item = e.Node as TreeNode;
Nodes n = new Nodes();
if ((item.Nodes.Count == 1) && (item.FirstNode.Text == "Loading..."))
{
item.Nodes.Clear();
DirectoryInfo expandedDir = null;
if (item.Tag is DriveInfo)
expandedDir = (item.Tag as DriveInfo).RootDirectory;
if (item.Tag is DirectoryInfo)
expandedDir = (item.Tag as DirectoryInfo);
try
{
foreach (DirectoryInfo subDir in expandedDir.GetDirectories())
item.Nodes.Add(n.CreateTreeItem(subDir));
foreach (FileInfo file in expandedDir.GetFiles())
item.Nodes.Add(file.Name);
}
catch { }
}
}
