Diese Frage hat hier bereits eine Antwort:

Below ist mein Code

DirectoryInfo directoryInfo = new DirectoryInfo(@"C:\Users\Shahul\Documents\Visual Studio 2010\Projects\TreeView\TreeView\bin\FileExplorer");

private void Form1_Load(object sender, EventArgs e)
{
    if (Directory.Exists("FileExplorer"))
    {
        try
        {
            DirectoryInfo[] directories = directoryInfo.GetDirectories();

            foreach (FileInfo file in directoryInfo.GetFiles())
            {
                if (file.Exists)
                {
                    TreeNode nodes = treeView.Nodes[0].Nodes.Add(file.Name);
                }
            }

            if (directories.Length > 0)
            {
                foreach (DirectoryInfo directory in directories)
                {
                    TreeNode node = treeView.Nodes[0].Nodes.Add(directory.Name);
                    node.ImageIndex = node.SelectedImageIndex = 0;
                    foreach (FileInfo file in directory.GetFiles())
                    {
                        if (file.Exists)
                        {
                            TreeNode nodes = treeView.Nodes[0].Nodes[node.Index].Nodes.Add(file.Name);
                        }
                    }
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }
}

Wenn ich renne, bekomme ich nur ein leeres Baumansicht-Formular? Können Sie nicht herausfinden, was der Fehler ist?

Übrigens mein erster Beitrag in Stack Overflow.