C# 你怎么知道约会就是会议？

我正在使用VSTO在Outlook加载项中为会议开发Outlook窗体区域

我所在地区的工厂如下所示：

[Microsoft.Office.Tools.Outlook.FormRegionMessageClass(Microsoft.Office.Tools.Outlook.FormRegionMessageClassAttribute.Appointment)]
[Microsoft.Office.Tools.Outlook.FormRegionName("Notices.MeetingRegion")]
public partial class MeetingRegionFactory
{
    // Occurs before the form region is initialized.
    // To prevent the form region from appearing, set e.Cancel to true.
    // Use e.OutlookItem to get a reference to the current Outlook item.
    private void MeetingRegionFactory_FormRegionInitializing(object sender, Microsoft.Office.Tools.Outlook.FormRegionInitializingEventArgs e)
    {

        var appointment = e.OutlookItem as Outlook.AppointmentItem;
        // is appointment a meeting or just an appointment?

    }
}

我只需要为会议显示表单区域，我不想为普通约会显示表单区域

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我如何判断约会是会议还是普通约会？

您必须检查AppointmentItem的属性。对于没有与会者的简单约会，应显示状态