ASP.NET使用TreeView顯示文件的方法

<asp:TreeView ID="driverInfoView" runat="server" ImageSet="XPFileExplorer" OnTreeNodePopulate="driverInfoView_TreeNodePopulate"> 
 
</asp:TreeView> 

protected void Page_Load(object sender, EventArgs e) 
{ 
 foreach (DriveInfo driverInfo in DriveInfo.GetDrives()) 
 { 
 TreeNode newNode = new TreeNode(); 
 newNode.Expanded = false; 
 newNode.PopulateOnDemand = true; 
 newNode.Value = driverInfo.Name; 
 
 if (driverInfo.IsReady) 
 { 
 newNode.Text = driverInfo.Name + "(" + driverInfo.VolumeLabel + ")"; 
 } 
 else 
 { 
 newNode.Text = driverInfo.Name + "(還沒準備好)"; 
 } 
 this.driverInfoView.Nodes.Add(newNode); 
 } 
} 

protected void driverInfoView_TreeNodePopulate(object sender, TreeNodeEventArgs e) 
{ 
 DirectoryInfo dictInfo = new DirectoryInfo(e.Node.Value); 
 
 foreach (DirectoryInfo directory in dictInfo.GetDirectories()) 
 { 
 TreeNode newNode = new TreeNode(); 
 newNode.Expanded = false; 
 newNode.PopulateOnDemand = true; 
 newNode.Text = directory.Name; 
 newNode.Value = directory.FullName; 
 e.Node.ChildNodes.Add(newNode); 
 } 
 
 foreach (FileInfo fileInfo in dictInfo.GetFiles()) 
 { 
 TreeNode newNode = new TreeNode(); 
 newNode.Text = fileInfo.Name; 
 newNode.Value = fileInfo.FullName; 
 e.Node.ChildNodes.Add(newNode); 
 } 
}