Treeview: Problem with expanding the items

Hey there,
I'm having some problems with my TreeView. It works, but there is no "+" symbol in front of the folder-items. They appear only if I double-click the items.

And that's not really nice, lol
any ideas?

here's my code:

Global TreeView:TGadget=CreateTreeView(ClientWidth(MainWindow)-210,35,200,360,MainWindow) 
Global TreeViewIconStrip:TIconStrip=LoadIconStrip("images/treeicons.png") 
SetGadgetIconStrip(TreeView, TreeViewIconStrip)
showTreeView(".",TreeView)



Select EventID()
	Case EVENT_GADGETACTION
		Select EventSource()
			Case TreeView
				Local Node:TGadget = SelectedTreeViewNode(TreeView)
				Local s:String=String(Node.Context)
				If s>""
					showTreeView(s,Node)
					Node.context=""
				EndIf
				ExpandTreeViewNode(node)
		End Select
End Select



Function showTreeView:Int(Dir:String, Parent:TGadget)
	Local Folder:Int=ReadDir(Dir)
	Local File:String
	Local FullPath:String
	
	Repeat
		File=NextFile(Folder)
		If File<>"." And File<>".." And File<>Null
			FullPath = RealPath(Dir+"/"+File)
			If FileType(FullPath)=FILETYPE_DIR Then
				Local handle:TGadget=AddTreeViewNode(File,Parent,0)
				handle.context=FullPath
			Else
				AddTreeViewNode(File,Parent,1)
			EndIf
		EndIf
	Until File=Null
EndFunction

thanks in advance!
mike

Yup, I reported this. I think Skidracer had a fix or a workaround to suggest, but I can't remember what it was now. I'll see if I can find it, and I'll edit this reply if I can.

Off the top of my head, I'm thinking he probably suggested expanding and contracting the node, but that I seem to recall that this didn't entirely suit my purposes at the time. But I think he had another suggestion, so hopefully I can find it.

ah, so it is actually a "bug"?
anyway, thanks man. Waiting for your answer :)

I've messed around with some functions and I tried it also with

RedrawGadget(TreeView)

But this works only, if I add new items to the TreeView manually (via my self-programmed interface). If I create the tree structure with the showTreeView()-function it will NOT work, weird...
And thats bad, if I want to load the tree from a save file.

Maybe someone can help me?

---

Another problem:
How can I remove a single item from the tree? I tried it with:

RemoveGadgetItem(TreeView,SelectedTreeViewNode(TreeView))

But it gives me an error: I need to declare an Integer (2nd argument) and I do have a TGadget. So how do I get the Int-value of the selected item (SelectedTreeViewNode)?


THX in advance

nobody knows?
I'd love to continue the work on my program. Any help would be appreciated.

For removing, Isn't it FreeTreeViewNode( node:TGadget )

Oh yeah. Wonderful, that helped!
Thanks man!

@Gabriel:
I hope you'll have some new infos on the expanding problem soon :-)

Sorry man, I completely forgot.

The thread I was referring to is this one.

http://www.blitzbasic.com/Community/posts.php?topic=63874

It requires a recompile of MaxGUI, though, which I can't personally do, so I can't tell you if it works or not. I'd really like to see it fixed for all though, as it's a real pain in the butt in my own project.