To create tree view of directories

  private void button1_Click(object sender, EventArgs e)
        { 

treeView1.Nodes.Add("My Computers");
            TreeNode child = new TreeNode();
            TreeNode chNode = new TreeNode();
            DirectoryInfo direObj = new DirectoryInfo("F:\\Tushar\\E-Books");
            treeView1.Nodes.Add(direObj.Name);
            foreach (DirectoryInfo d in direObj.GetDirectories())
            {
                child .Nodes .Add (d.FullName );
                chNode.Nodes .Add (GetDir(d));
            }
            child.Nodes.Add(chNode);
            treeView1.Nodes.Add(child);

	}

/* this is the exact logic of creating a treeNode and assigning it 

with the directory name or the sub-Directory name or the file name

*/

 /*

The recursive function that searches the sub-directories and the 

files is :

*/

TreeNode GetDir(DirectoryInfo di)
        {
            TreeNode SubNode = new TreeNode();
            foreach (DirectoryInfo d in di.GetDirectories())
            {
                SubNode.Nodes.Add(d.FullName);
                TreeNode ChildNode = new TreeNode();
                foreach (FileInfo file in d.GetFiles("*.*"))
                {                    
                    ChildNode.Nodes.Add(file.FullName );
                }
                SubNode.Nodes.Add(ChildNode);
                GetDir(d);
            }
            return SubNode;
        }