Microsfot. Web. UI. webcontrols. Treeview JavaScript Control Method

1. Index of the selected node:
   Tree. selectednodeindex

2. Index of the clicked node:
   Tree. clickednodeindex

3. Get a node:
   Tree. gettreenode (nodeindex)

4. Add a subnode under the root node:
   VaR tree = Document. All ['treeview1'];
   VaR node = tree. createtreenode ();
   Tree. Add (node );
   Node. setattribute ("text", "aaaa ");

5. Add a subnode to the current node:
   VaR tree = Document. All ['treeview1'];
   VaR node = tree. createtreenode ();
   VaR parentnode = tree. gettreenode (tree. clickednodeindex );
   Parentnode. Add (node );
   Node. setattribute ("text", "aaaa ");

6. Add sub-nodes using XML files:
   Node. setattribute ("navigateurl", "XXX ");
   Node. databind ();
7. Automatically expand after adding a subnode dynamically:
   Node. setattribute ('expanded', 'true'); // you need to modify a location in HTC provided by Ms. Otherwise, an exception occurs.
8. Get node attributes:
   Node. getattribute ("XXX ")
9. Set node attributes:
   Node. setattribute ('xxx', 'xxxx ');
10. List of common attributes:
    

    Attribute	Value	Description
    Checkbox	True False	Select box?
    Checked	True False	Whether or not the selection box is selected
    Expanded	True False	Expand?
    Imageurl		Icon on the left
    Selectedimageurl		Icon on the left when the node is selected
    Expandedimageurl		Icon on the left after the node is expanded
    Target		Target framework
    Navigateurl		Target URL
    Type		Node Type
    Childtype		Subnode type
    Text		Text displayed on the node
    Innertext
    Innerhtml
    Defaultstyle		Default Style
    Hoverstyle		The style of moving the mouse over the node
    Selectedstyle		Style when a node is selected
    Treenodesrc

11. Get parent node:
    Node. getparent ()
12. Obtain subnodes:
    Node. getchildren ()
13. Determine whether a node has a subnode
    Node. getchildren (). length> 0
14. Response to the onselectedindexchange event:
    VaR tree = Document. All ["tvmain"];
    Tree. attachevent ("onselectedindexchange", selectedindexchange );

Reprinted from: http://www.cnblogs.com/jacker1979/articles/1077036.html