Change the design of the ComboBox

Question

I need to change the design of the Windows Forms ComboBox to this:

Do I need to redesign the button and inherit from UserControl, and start all the functionality from zero?

Or enough to inherit from ComboBox, and just what I need to do is change the graphics?
And if so, how do I do it?

Answer 1

Do you have to use winforms? In .NET's WPF it is much easier to change the style of combo boxes (and other controls). You can find numerous tutorials and/or examples on the internet.