在ASP.NET中,TreeView的使用很普遍,把它利用上来
首先加入TreeView控件
Html代码
class="star" src="/Upload/Images/2014091014/40B102E0EF997EA6.png" alt="收藏代码" />
- <asp:TreeView ID="driverInfoView" runat="server" ImageSet="XPFileExplorer" OnTreeNodePopulate="driverInfoView_TreeNodePopulate">
-
- </asp:TreeView>
当页面加载的时候,写下以下代码
C#代码
- 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 + "(还没准备好)";
- }
- this.driverInfoView.Nodes.Add(newNode);
- }
- }
设置TreeView节点的事件
C#代码
- 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);
- }
- }