I have a UserControl with a C1Combo on it.
I have exposed the Columns property of the underlying combo through the UserControl, such that it appears in the Properties window at design time, with an ellipsis button as expected. However, pressing the button has no effect.
I suspect I may need to explicitly set the Editor attribute on the property to get the C1Combo Columns property editor to appear, but what do I set it to? Alternatively, is there an easier way of getting the property editor to appear?