C＃獲取Outlook對話中的最新回復

Question

如何在Outlook對話中獲得最后的答復？ 例如，以下代碼：

Outlook.MailItem item = Items.GetLast();
MessageBox.Show(item.Body);

將顯示整個電子郵件，而不僅僅是最后一個回復。

Answer 1

以下示例顯示如何在對話中獲取和顯示郵件項目。

void DemoConversation()
{
   object selectedItem = Application.ActiveExplorer().Selection[1];
   // For this example, you will work only with 
   //MailItem. Other item types such as
   //MeetingItem and PostItem can participate 
   //in Conversation.
   if (selectedItem is Outlook.MailItem)
   {
      // Cast selectedItem to MailItem.
      Outlook.MailItem mailItem = selectedItem as Outlook.MailItem; 
      // Determine store of mailItem.
      Outlook.Folder folder = mailItem.Parent as Outlook.Folder;
      Outlook.Store store = folder.Store;
      if (store.IsConversationEnabled == true)
      {
         // Obtain a Conversation object.
         Outlook.Conversation conv = mailItem.GetConversation();
         // Check for null Conversation.
         if (conv != null)
         {
            // Obtain Table that contains rows 
            // for each item in Conversation.
            Outlook.Table table = conv.GetTable();
            Debug.WriteLine("Conversation Items Count: " +                   table.GetRowCount().ToString());
            Debug.WriteLine("Conversation Items from Table:");
            while (!table.EndOfTable)
            {
                Outlook.Row nextRow = table.GetNextRow();
                Debug.WriteLine(nextRow["Subject"]
                    + " Modified: "
                    + nextRow["LastModificationTime"]);
            }
            Debug.WriteLine("Conversation Items from Root:");
            // Obtain root items and enumerate Conversation.
            Outlook.SimpleItems simpleItems = conv.GetRootItems();
            foreach (object item in simpleItems)
            {
                // In this example, enumerate only MailItem type.
                // Other types such as PostItem or MeetingItem
                // can appear in Conversation.
                if (item is Outlook.MailItem)
                {
                    Outlook.MailItem mail = item as Outlook.MailItem;
                    Outlook.Folder inFolder = mail.Parent as Outlook.Folder;
                    string msg = mail.Subject 
                        + " in folder " + inFolder.Name;
                    Debug.WriteLine(msg);
                }
                // Call EnumerateConversation 
                // to access child nodes of root items.
                EnumerateConversation(item, conv);
             }
          }
       }
    }
 }

 void EnumerateConversation(object item, Outlook.Conversation conversation)
 {
    Outlook.SimpleItems items = conversation.GetChildren(item);
    if (items.Count > 0)
    {
      foreach (object myItem in items)
      {
        // In this example, enumerate only MailItem type.
        // Other types such as PostItem or MeetingItem
        // can appear in Conversation.
        if (myItem is Outlook.MailItem)
        {
           Outlook.MailItem mailItem = myItem as Outlook.MailItem;
            Outlook.Folder inFolder = mailItem.Parent as Outlook.Folder;
            string msg = mailItem.Subject
                + " in folder " + inFolder.Name;
            Debug.WriteLine(msg);
        }
        // Continue recursion.
        EnumerateConversation(myItem, conversation);
      }
   }
}

在示例代碼示例中，我們獲取了一個選定的MailItem對象，然后使用Folder對象的Store屬性確定MailItem對象的Store 。 然后， IsConversationEnabled檢查IsConversationEnabled屬性是否為true。 如果為true，則代碼示例使用GetConversation方法獲取Conversation對象。 如果“ Conversation對象不是空引用，則該示例使用GetTable方法獲取包含對話中每個項目的關聯Table對象。 然后，該示例枚舉Table每個項目，並在每個項目上調用EnumerateConversation以訪問每個項目的子節點。 EnumerateConversation接受一個Conversation對象，並使用GetChildren(Object)方法獲取子節點。 遞歸調用EnumerateConversation直到沒有更多的子節點為止。 然后，每個對話項都顯示給用戶。