IActiveView Events

GregRieck — Wed, 16 Mar 2011 16:38:27 GMT

Hello,

Does anyone have any C# sample code for setting up the IActiveViewEvents Interface that they would be willing to share?

http://help.arcgis.com/en/sdk/10.0/arcobjects_net/componenthelp/index.html#/IActiveViewEvents_Interface/00120000019m000000/

G

Re: IActiveView Events

BradChappell — Thu, 17 Mar 2011 17:09:24 GMT

First create the delegates (class level):

private IActiveViewEvents_ItemAddedEventHandler m_ActiveViewEventsItemAdded;
private IActiveViewEvents_ItemDeletedEventHandler m_ActiveViewEventsItemDeleted;
private IActiveViewEvents_AfterItemDrawEventHandler m_ActiveViewEventsAfterItemDraw;

Wire the events inside class constructor:

//Create an instance of the delegate, add it to ItemAdded event
m_ActiveViewEventsItemAdded = new IActiveViewEvents_ItemAddedEventHandler(OnActiveViewEventsItemAdded);
            ((IActiveViewEvents_Event)(m_TheDoc.FocusMap)).ItemAdded += m_ActiveViewEventsItemAdded;

//Create an instance of the delegate, add it to ItemDeleted event
m_ActiveViewEventsItemDeleted = new IActiveViewEvents_ItemDeletedEventHandler(OnActiveViewEventsItemDeleted);
            ((IActiveViewEvents_Event)(m_TheDoc.FocusMap)).ItemDeleted += m_ActiveViewEventsItemDeleted;

//Create an instance of the delegate, add it to ItemDeleted event
m_ActiveViewEventsAfterItemDraw = new IActiveViewEvents_AfterItemDrawEventHandler(OnActiveViewEventsAfterItemDraw);
            ((IActiveViewEvents_Event)(m_TheDoc.FocusMap)).AfterItemDraw += m_ActiveViewEventsAfterItemDraw;

Create the Event handlers:

//Event handler
        private void OnActiveViewEventsItemAdded(object Item)
        {
                 //Code to execute
        }

        //Event handler
        private void OnActiveViewEventsItemDeleted(object Item)
        {
                 //Code to execute
        }

        //Event handler
        private void OnActiveViewEventsAfterItemDraw(short index, IDisplay display, esriDrawPhase phase)
        {
            if (phase == esriDrawPhase.esriDPGeography)
            {
                //Code to execute
            }
        }

Re: IActiveView Events

GregRieck — Thu, 17 Mar 2011 17:27:15 GMT

Brad,

Thank you for your response. I wasn't sure what the event parameters were and I couldn't find anything in the help doc's. I was specifically looking to trap for the AfterDraw event. Now today I've found the complete interface exposed through an ArcGIS snippet. I always forget to check those. Thanks again for your help.

Greg

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