Event after a Outlook Appointment was saved

.net, c#, events, outlook-addin

Solution

ok, i think i got this. You have to register a handler on the Folder, that has your Appointments.

i read and experienced myself, that its crutial to save a reference to the objects you register an event, so i did this. So thats the code

private Outlook.MAPIFolder _CalendarFolder = null;
private Outlook.Items _CalendarItems = null;

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
    Outlook.MAPIFolder calendarFolder =
        this.Application.ActiveExplorer().Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderCalendar);

    // get the Termine24-Folder (if not found, create it)
    try
    {
        _CalendarFolder = calendarFolder.Folders[Constants.FOLDERNAME];
    }
    catch
    {
        _CalendarFolder = calendarFolder.Folders.Add(Constants.FOLDERNAME);
    }
    _CalendarItems = _CalendarFolder.Items;
    attachEvents();

}
public void attachEvents()
{
    _CalendarItems.ItemAdd += Item_Add;
    _CalendarItems.ItemChange += Item_Change;
    _CalendarItems.ItemRemove += Item_Remove;
}
public void Item_Add(Object item)
{
    Outlook.AppointmentItem aitem = item as Outlook.AppointmentItem;
    if (aitem != null)
    {
        MessageBox.Show("add: " + aitem.Subject);
    }
    else
    {
        MessageBox.Show("add, but no appointment");
    }
}
public void Item_Change(Object item)
{
    Outlook.AppointmentItem aitem = item as Outlook.AppointmentItem;
    if (aitem != null)
    {
        MessageBox.Show("changed: " + aitem.Subject);
    }
    else
    {
        MessageBox.Show("change, but no appointment");
    }
}
public void Item_Remove()
{
    MessageBox.Show("Item_remove");
}

to good thing is, that now I also get an event if the appointment gets drag-and-dropped in the overview.

BUT the Item_Remove still don't gets me the Object that got removed.

Problem

I am writing an Outlook Add-in and want to do something (not relevant here) with the data of an Appointment after (when) it was saved. (i am new to Outlook-Addins) so i found that there is an AfterWrite event where i can register a Method. And there is an ItemLoad event on Application. so my first Efford was something like this: ``` private void ThisAddIn_Startup(object sender, System.EventArgs e) { // ... this.Application.ItemLoad += new Outlook.ApplicationEvents_11_ItemLoadEventHandler(atItemLoad); } public void atItemLoad(Object item) { Outlook.AppointmentItem aitem = item as Outlook.AppointmentItem; if (aitem != null) { aitem.AfterWrite += new Outlook.ItemEvents_10_AfterWriteEventHandler(afterWrite); } } public void afterWrite() { // Who was written? MessageBox.Show("it was written!"); } ``` The problem is, that I don't know how to get to the data of the Appointment, that fired the event. Application.ItemLoad registers a function that gets an Object, that can be cast to an Appointment. AfterWrite does not. I'd like something like this: ``` public void afterWrite(Outlook.AppointmentItem aitem) { // do something with the data from the Appointment MessageBox.Show(aitem.Subject + " was written!"); } ``` I fear that I am researching in the totally wrong direction.. *sorry if my english is a mess - it's not my mother language edit: i even tried a construct like this: ``` private List<AppointmentEventHolder> holderList = new List<AppointmentEventHolder>(); internal class AppointmentEventHolder { private Outlook.AppointmentItem aitem = null; public AppointmentEventHolder(Outlook.AppointmentItem item) { aitem = item; } public void onWrite() { MessageBox.Show("write: " + aitem.Subject); } } public void atItemLoad(Object item) { Outlook.AppointmentItem aitem = item as Outlook.AppointmentItem; if (aitem != null) { AppointmentEventHolder aHolder = new AppointmentEventHolder(aitem); holderList.Add(aHolder); aitem.AfterWrite += aHolder.onWrite; } } ``` but event doesn't get fired! i am very frustrated now

Original source