Good Morning All,
 
Need help in setting the backcolor of a selected node in asp.net 2.0' s treeview control, without postback.

This is what I did:
 1.Populated the treeview control using a collection(of nodes).
 2.For each TreeNode created , set the NavigateUrl property,
                    child.NavigateUrl = "javascript:SelectNode(this," + node.NodeId +")";
 3.Javascript:
  var prevNode= null;
  function SelectNode(currentNode, nodeId)
  {
    
      if(prevNode!=null)
          prevNode.className='';
      currentNode.className='selected';
         
      prevNode= currentNode;
  }
 

Question / Problem:
 1.alert(currentNode) gives object, but color dont change.
 2.alert(currentNode.id) gives undefined even though the viewsource shows something like this:

  <table cellpadding="0" cellspacing="0" style="border-width:0;">
   <tr>
    <td><div style="width:10px;height:1px"><img src="/WebResource.axd?d=P4RU-hSsdH2kOfIwJeYucpQuKE03aRBqIWkkbK1ZiYE1&amp;t=633217587889533860" alt="" /></div></td><td><img src="/WebResource.axd?d=P4RU-hSsdH2kOfIwJeYuci_CkJj3oPaIAvyG7pay0L01&amp;t=633217587889533860" alt="" /></td><td style="white-space:nowrap;padding:0px 5px 0px 5px;"><a href="javascript:SelectNode(this,641);" id="treeviewDomianst7" style="text-decoration:none;">xxxxxxxx</a></td>
   </tr>
  </table>

What's wrong?? Why not alert(currentNode.id) return the correct id (treeviewDomianst7) ??
Appreciate any solution (without postback)

thanks.

Hello guys , seems no one is using the tree control as I am using or everyone is too busy.

However , I am able to do what I wanted.

got the idea from this link :  http://www.codeproject.com/useritems/focusBGColor.asp

This is what I did in javascript:

 Attached function to onclick event of the treenode ( the anchor)

window.onload = setTreeFunction;

Let me know if there is a better solution.

Thanks

Please let me know if there is a better solution

I think there is not any solution is the best for everybody, they depend on your programming habits and skill or programming patterns. Your solution is very good I think. Another answer you can apperceive from http://www.codeproject.com/aspnet/ClientSideTreeView.asp.

May it helps... Thanks.