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OnActionEventHandler Delegate (ArcObjects .NET 10.8 SDK)
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OnActionEventHandler Delegate

Represents the method that handles the OnAction event.
[Visual Basic .NET]
Public Delegate Sub OnActionEventHandler ( _
    ByVal action As esriARAction, _
    ByVal data As Object, _
    ByRef suppressAction As Boolean _
)
[C#]
public delegate void OnActionEventHandler (
    esriARAction action,
    object data,
    ref bool suppressAction
);