How do I know the level when I click an item in the tree?

Question

Hi,
   When I click a tree node in tree component, how do I know the level of this item?
   E.g., if I click the root node, then I get the level number 1, if I click second level node, I get the number 2 etc.
   Thanks!

Answer 1

Hi,
You can get to know the level of a tree by the ID of its node.
Like,what i did was,In the layout,
<htmlb:treeNode id      = "root"
                text    = "MRF LIST"
                isOpen  = "true">
   <htmlb:treeNode id      = "node1"
                   text    = "MRF's To Be Processed"
                   isOpen  = "true"
                   tooltip = "MRF's to do"
                   toggle  = "X">
<%data :tab_0 type ZDI_MRF.%>
   <%loop at tab_mrf_0 into tab_0.%>
      <htmlb:treeNode id     = "node1<%=sy-tabix%>"
                      text   = "<%=tab_0-MRF_NUM%>"
                      image  = "@02@"
                      onNodeClick="show">
       </htmlb:treeNode>
    <% endloop.%>
By this,on node click in onInputProcessing,we can process it as
if  event->id = 'myTree1' and event->event_type = 'click'.
     data : t_event type ref to cl_htmlb_event_tree.
     t_event ?=  event.
     temp = t_event->node.
   <b>  if strlen( temp ) ge '6'. </b>
     data : x type string ,
            tab type zdi_mrf.
   <b>  if temp ca 'node1%'. </b>
            split temp at '1' into x node1.
          endif.
By this you can get the length of the ID and hence get the level,say id strlen( temp ) = 4 ,then node = root ,if strlen( temp ) = 5 ,then level 1.
Maybe you can do something similar.
Hope this helps,
Regards,
Siddhartha