outlook - 共享邮箱 Outlook 2007 的新邮件提醒

Question

我正在尝试为 Outlook 2007 中的共享邮箱创建弹出邮件警报。下面的代码不起作用。为什么？

private Microsoft.Office.Interop.Outlook._Explorers Explorers;
private Microsoft.Office.Interop.Outlook.NameSpace outlookNamespace;
private Microsoft.Office.Interop.Outlook.MAPIFolder mFolder;
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
  Explorers = this.Application.Explorers;         
  outlookNamespace = this.Application.GetNamespace("MAPI");         
  mFolder = outlookNamespace.Folders["Mailbox -AdditionalMailBox"].Folders["Inbox"];  
  mFolder.Application.NewMailEx += new  ApplicationEvents_11_NewMailExEventHandler(Application_NewMailEx );
}
private void Application_NewMailEx(string EntryID)
{
  MessageBox.Show("New MailReceived!");
}

Answer 1

为了使您的事件处理程序能够在垃圾回收中幸存 - 您需要通过将包含事件的对象添加为私有(private)成员变量来确保它们保持事件状态。尝试添加 Application 私有(private)类变量，您的事件订阅应该可以正常工作。请参阅related SO post了解更多详情。

private Microsoft.Office.Interop.Outlook.Application application;
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
    application = this.Application;
    Explorers = application.Explorers;         
    // ...         
    application.NewMailEx += new  ApplicationEvents_11_NewMailExEventHandler(Application_NewMailEx );
}

您发现的另一个问题是 NewMailEx 仅针对您的主邮箱触发 - 而不是辅助邮箱，如 confirmed in this forum post 。您将需要依赖 Folder.Items事件ItemAdd .

private Outlook.Items mFolderItems;
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
    // ...
    mFolderItems = mFolder.Items; // avoid GC for ItemAdd event
    mFolderItems.ItemAdd += new ItemsEvents_ItemAddEventHandler(mFolder_ItemAdd);
    // ...
}        
private void mFolder_ItemAdd(object addedItem)
{
  Outlook.MailItem newItem = addedItem as Outlook.MailItem;
}