>Hello,
>Im using a treeview control as part of the user interface of my app;
>i noticed a few things with it, when i check/uncheck any node, the whole tree refreshes and its pretty slow most specially when there are lots of nodes in it,
>is there any way around this? subclassing?

«when i check/uncheck any node, the whole tree refreshes »

Do you have any code in the Click event to cause a refresh or any other operation?