ArcGIS Developer Help  (ESRI.ArcGIS.Controls)  

OnItemSelectedEventHandler Delegate

Represents the method that handles the OnItemSelected event.
[Visual Basic .NET]
Public Delegate Sub OnItemSelectedEventHandler ( _
    ByVal StyleGalleryItem As Object _
)
[C#]
public delegate void OnItemSelectedEventHandler (
    object StyleGalleryItem
);