What's wrong inside this code !

BlitzMax Forums/MaxGUI Module/What's wrong inside this code !

hub	(Posted 2010) [#1]

Hi !
Could you help me to find what's wrong inside this code : (have the error when debug mode is activated).

	Strict

	Import MaxGUI.Drivers

	Local WinListeAffichage:TGadget = CreateWindow:TGadget("Affichage",(GadgetWidth(Desktop())-610)/2,(GadgetHeight(Desktop())-460)/2,610,460,Null,WINDOW_TITLEBAR|WINDOW_HIDDEN)

	Local Affichage_treeview_entree:TGadget = CreateTreeView:TGadget(20,50,230,360,WinListeAffichage:TGadget)

	Local Affichage_Noeud_Racine :Tgadget  = TreeViewRoot(Affichage_treeview_entree)

	ActivateWindow(WinListeAffichage)
	
	ClearTreeView (Affichage_treeview_entree)
	Affichage_Noeud_Racine = TreeViewRoot(Affichage_treeview_entree)
	SelectTreeViewNode  (Affichage_Noeud_Racine)
	Affichage_Noeud_Racine = AddTreeViewNode ("Tous", Affichage_treeview_entree) 'error here : attempt to access field or method off null object !!!

Thanks !

Last edited 2010

jsp	(Posted 2010) [#2]

You used the wrong node.

Strict

	Import MaxGUI.Drivers

	Local WinListeAffichage:TGadget = CreateWindow:TGadget("Affichage",(GadgetWidth(Desktop())-610)/2,(GadgetHeight(Desktop())-460)/2,610,460,Null,WINDOW_TITLEBAR)

	Local Affichage_treeview_entree:TGadget = CreateTreeView:TGadget(20,50,230,360,WinListeAffichage:TGadget)

	Local Affichage_Noeud_Racine :Tgadget  = TreeViewRoot(Affichage_treeview_entree)

	ActivateWindow(WinListeAffichage)
	
	ClearTreeView (Affichage_treeview_entree)
	Affichage_Noeud_Racine = TreeViewRoot(Affichage_treeview_entree)
	SelectTreeViewNode  (Affichage_Noeud_Racine)
	AddTreeViewNode ("Tous", Affichage_Noeud_Racine) 'error here : attempt to access field or method off null object !!!

hub	(Posted 2010) [#3]

Of course ! many thanks for your help !