| Overload | Description |
|---|---|
| Contains(RibbonButton) | Determines whether the QatCustomButtonCollection contains a specific RibbonButton. |
| Contains(String) | Determines whether the collection contains a RibbonItem with the given name. (Inherited from C1.Win.Ribbon.RibbonItemCollectionBase) |
| Contains(RibbonItem) | Determines whether this collection contains the specified RibbonItem. (Inherited from C1.Win.Ribbon.RibbonItemCollectionBase) |