Dear Reader,

I figured out that the ItemAdd event fires more than once when I add a new
appointment to the calendar in Outlook 2003! After a couple of ItemAdd events
one ItemChanged event is fired! It also seems that when there are more items
in the calendar, more ItemAdd events will be fired...

Does anyone know the cause of this strange behaviour and the solution?

Here's the code snippet which is executed in the OnStartupComplete() method
of my add-in:

Outlook.Application application =
(Microsoft.Office.Interop.Outlook.Application)applicationObject;
Outlook.NameSpace mapiNamespace = application.GetNamespace("MAPI");
Outlook.MAPIFolder calendarFolder =
mapiNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderCalendar);

calendarFolder.Items.ItemAdd += new
Microsoft.Office.Interop.Outlook.ItemsEvents_ItemAddEventHandler(Items_ItemAdd);
calendarFolder.Items.ItemChange += new
Microsoft.Office.Interop.Outlook.ItemsEvents_ItemChangeEventHandler(Items_ItemChange);

Thank you in advance!

Johan Machielse
Avanade

Already solved; I added the handler to the event at two places!

"Johan Machielse" wrote:

> Dear Reader,
>
> I figured out that the ItemAdd event fires more than once when I add a new
> appointment to the calendar in Outlook 2003! After a couple of ItemAdd events
> one ItemChanged event is fired! It also seems that when there are more items
> in the calendar, more ItemAdd events will be fired...
>
> Does anyone know the cause of this strange behaviour and the solution?
>
> Here's the code snippet which is executed in the OnStartupComplete() method
> of my add-in:
>
> Outlook.Application application =
> (Microsoft.Office.Interop.Outlook.Application)applicationObject;
> Outlook.NameSpace mapiNamespace = application.GetNamespace("MAPI");
> Outlook.MAPIFolder calendarFolder =
> mapiNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderCalendar);
>
> calendarFolder.Items.ItemAdd += new
> Microsoft.Office.Interop.Outlook.ItemsEvents_ItemAddEventHandler(Items_ItemAdd);
> calendarFolder.Items.ItemChange += new
> Microsoft.Office.Interop.Outlook.ItemsEvents_ItemChangeEventHandler(Items_ItemChange);
>
> Thank you in advance!
>
> Johan Machielse
> Avanade