Deleting items from treeview

[Annelize]

Good day

I was hoping somebody could shed some light on my problem. I currently
have a u_dw and a u_tvs with 2 levels. What I do is allow the user to
assign items from my datawindow to my treeview or remove them again
from the treeview.

The problem comes in when I give the user the option to remove ALL
level 2 items from the treeview. This is my code:

//remove all level 2 items from the treeview
ll_ItemHandle = tv.FindItem(RootTreeItem!, 0)

DO UNTIL ll_ItemHandle = -1

//get first child item handle
tv_default_nav.expanditem(ll_ItemHandle)
ll_childHandle = tv_default_nav.FindItem(ChildTreeItem!, ll_ItemHandle)

    DO UNTIL ll_childHandle = -1
    //Loop through all items in the child, delete(level 2)
    tv_default_nav.DeleteItem(ll_childHandle)

    ll_childHandle = tv_default_nav.FindItem(NextTreeItem!, &
       ll_childHandle)
    LOOP

ll_ItemHandle = tv_default_nav.FindItem(NextTreeItem! , ll_ItemHandle)
LOOP

My problem is the following: For some reason the

ll_childHandle = tv_default_nav.FindItem(ChildTreeItem!, ll_ItemHandle)

returns the LAST item for that level. It then removes it but as there
is no items after that, returns -1 and exits the loop. ChildTreeItem!
Is suppose to get the first child of itemhandle.

Any advice will be greatly appreciated.
Kind regards,
Annelize

 

[mbalent]

My guess is that ll_ItemHandle is not what you expect since the FindItem method returns the next handle AFTER the specified handle.

Matt

"Nature forges everything on the anvil of time

 

[Annelize]

Hi Matt

As far as I know ll_Itemhandle is perfect. I tested with

Group
- Item1
- Item2

and it took me to the right level. But let's say it is not correct and just by random luck it ended up at the right level. What is the mistake I'm making then? Surely to get the handle of the first level 1 item is

ll_ItemHandle = tv.FindItem(RootTreeItem!, 0)

Thanks!