Use the TreeView display file in ASP. NET, asp. nettreeview

Use the TreeView display file in ASP. NET, asp. nettreeview

In ASP. NET, TreeView is widely used.

Add the TreeView control first.

Html code

1. <Asp: TreeView ID = "driverInfoView" runat = "server" ImageSet = "XPFileExplorer" OnTreeNodePopulate = "driverInfoView_TreeNodePopulate">
3. </Asp: TreeView>

When loading a page, write the following code

C # code

1. Protected void Page_Load (object sender, EventArgs e)
2. {
3. Foreach (DriveInfo driverInfo in DriveInfo. GetDrives ())
4. {
5. TreeNode newNode = new TreeNode ();
6. NewNode. Expanded = false;
7. NewNode. PopulateOnDemand = true;
8. NewNode. Value = driverInfo. Name;
10. If (driverInfo. IsReady)
11. {
12. NewNode. Text = driverInfo. Name + "(" + driverInfo. VolumeLabel + ")";
13. }
14. Else
15. {
16. NewNode. Text = driverInfo. Name + "(not ready yet )";
17. }
18. This. driverInfoView. Nodes. Add (newNode );
19. }
20. }

Set events of the TreeView Node

C # code

1. Protected void driverInfoView_TreeNodePopulate (object sender, TreeNodeEventArgs e)
2. {
3. DirectoryInfo dictInfo = new DirectoryInfo (e. Node. Value );
5. Foreach (DirectoryInfo directory in dictInfo. GetDirectories ())
6. {
7. TreeNode newNode = new TreeNode ();
8. NewNode. Expanded = false;
9. NewNode. PopulateOnDemand = true;
10. NewNode. Text = directory. Name;
11. NewNode. Value = directory. FullName;
12. E. Node. ChildNodes. Add (newNode );
13. }
15. Foreach (FileInfo fileInfo in dictInfo. GetFiles ())
16. {
17. TreeNode newNode = new TreeNode ();
18. NewNode. Text = fileInfo. Name;
19. NewNode. Value = fileInfo. FullName;
20. E. Node. ChildNodes. Add (newNode );
21. }
22. }

 

How to display the file directory in treeview in aspnet and the file content

Treeview is a navigation control. It is used to display website maps. It's not a file directory ~

Use treeview in aspnet to display the website directory structure

Give you a thought, you store the website structure into the database

Id nodeName parentID

1 parent node 0

2 subnode 1

Then recursively bind something.