電子郵件消息時，EWS無法檢測到.MSG文件

Question

我使用EWS 1.2來搜索我的郵箱中有附件的電子郵件，我將EmailMessage對象綁定到EWS對象。這是工作的罰款，但沒有檢測到.msg文件（Outlook郵件文件）：

ItemView mailview = new ItemView (12); 
FindItemsResults<Item> resultmail; 

resultmail = Service.FindItems(WellKnownFolderName.Inbox, mailview); 
foreach (Item item in resultmail.Items) 
{     
    EmailMessage email = EmailMessage.Bind(Service, item.Id, 
     new PropertySet(BasePropertySet.FirstClassProperties, 
         ItemSchema.Attachments)); 

    if (email.HasAttachments) 
    { 
     foreach (var attachment in email.Attachments) 
     { 
      if (attachment is FileAttachment) 
      { 
       Console.WriteLine("email has : " + email.Attachments.Count 
           + "attachement(s)" + "\n"); 
       Console.WriteLine("attachment name:" + attachment.Name); 
      } 
     } 
    } 
} 

Answer 1

如果郵件被附加在郵件中，它不是一個FileAttachment的，它是一個itemattachment。所以你應該像這樣擴展你的代碼：

... 
if (attachment is FileAttachment) 
{ 
    Console.WriteLine("email has : " + email.Attachments.Count + "attachement(s)" + "\n"); 
    Console.WriteLine("attachment name:" + attachment.Name); 
} 
else if (attachment is ItemAttachment) 
{ 
    ItemAttachment itematt = (ItemAttachment) attachment; 
    //with itematt.Item you can access the properties of the attachment. 
}