[Closed] Treeview node checking on formload

The difference between

dotnetcontrol tvObj "System.Windows.Forms.TreeView"

and

local tvObjs = dotNetObject "System.windows.forms.treeview"

is not related to local and global scope though. The first creates a UI element in a rollout, namely a dotnetControl. The second instantiates a dotnetObject, which is not visible on a rollout.
Unless you manually add the treeview to a .NET form, you would not normally use the second way.