| オーバーロード | 解説 |
|---|---|
| Contains(String) | Determines whether the collection contains a RibbonItem with the given name. |
| Contains(RibbonItem) | Determines whether this collection contains the specified RibbonItem. |
| オーバーロード | 解説 |
|---|---|
| Contains(String) | Determines whether the collection contains a RibbonItem with the given name. |
| Contains(RibbonItem) | Determines whether this collection contains the specified RibbonItem. |