See the How to: Customize Controls Associated with an Action for more details.
IMPORTANT NOTES
Take special note that if you use RibbonUI.Win module in your solution (before 10.1) you will need to handle the corresponding event of the DevExpress.ExpressApp.RibbonUI.Win.Templates.ActionContainers.RibbonBarActionItemsFactory class instead of the default DefaultBarActionItemsFactory one.
See Also:
How to create custom action type with custom control (BarCheckItem), associated with it
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