Why does the OnPaint method not be invoked in TreeView

[Guest]

I create a class derived from TreeView and override the OnPaint method in
which I add some drawing act.
But when I run the program and find that the OnPaint method not be invoked
actually.

Why?????

 

[Herfried K. Wagner [MVP]]

I create a class derived from TreeView and override the OnPaint method in
which I add some drawing act.
But when I run the program and find that the OnPaint method not be invoked
actually.

Why?????

The TreeView control is not drawn by .NET, instead it's drawn by the Common
Controls library.