[Suggestion] Allow suspending BindableCollection events

[RobertBeekman]

Hello,

I'm using BindableCollection in a TreeView and I'm having some trouble with recursive updates.

Because a child element does not know how many children of it's own it's going to receive, I cannot easily use AddRange without creating some kind of temporary list that I flush afterwards.

The result is I'm using Add instead, which means I'm getting a lot of raised events. Would it be possible to allow BindableCollection's events to be suspended? Then I can just do all my operations and manually call Refresh after everything is done.