本文實例講述了ASP.NET使用TreeView顯示文件的方法，是非常實用的技巧。。具體實現方法如下：

通常在ASP.NET中，TreeView的使用很普遍，這里詳細講述一下使用TreeView顯示文件的方法。

1.首先加入TreeView控件：

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

2.當頁面加載的時候,寫下以下代碼：

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);     } } 

3.設置TreeView節點的事件：

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);     } }

相信本文所述實例對大家的asp.net程序設計有一定的借鑒價值。