未始终触发 Outlook ItemAdd 事件

Question

我正在尝试判断收到的邮件是否是垃圾邮件。 Itemadd 事件只工作一次。它不会持续触发。

我该如何解决这个问题？

我执行以下操作：

public partial class ThisAddIn
{

    private void ThisAddIn_Startup(object sender, System.EventArgs e)
    {
        Outlook.MAPIFolder inbox = Application.Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
        inbox.ItemAdd += new Outlook.ItemsEvents_ItemAddEventHandler(InboxFolderItemAdded);
    }

    private void InboxFolderItemAdded(object Item)
    {
        if (Item is Outlook.MailItem)
        {
            Debug.WriteLine("I'm in!");
            Outlook.MailItem mail = (Outlook.MailItem)Item;
            int[] answer = Predict(mail);

            if(answer[0] == 0) // Not spam
            {
                Outlook.MAPIFolder inboxFolder = ((Outlook.MAPIFolder)this.Application.ActiveExplorer().Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox));
                mail.Move(inboxFolder);
            }

            else if(answer[0] == 1) // Spam
            {
                Outlook.MAPIFolder junkFolder = ((Outlook.MAPIFolder)this.Application.ActiveExplorer().Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderJunk));
                mail.Move(junkFolder);
            }
        }
    }

    private int[] Predict(Outlook.MailItem mailBody)
    {
        Debug.WriteLine("I'm inside in predict function");
        double[]feature = featureExtraction.findFeatureIncomingMail(mailBody.Body);
        int[] answer = tree.Decide(feature);
        return answer;
    }
}

当我给自己发送邮件时，"I'm in" 和 "I'm inside in predict function" 在调试控制台中只显示一次。

Answer 1

首先，您的代码无法编译 - MAPIFolder 对象上没有 ItemAdd 事件。它由 Items 对象公开（从 MAPIFolder.Items 属性返回）。

其次，引发事件的对象 (Items) 必须保持活动状态 - 在 class 级别声明它，而不是作为局部变量，当 ThisAddIn_Startup 方法退出。

Answer 2

工作代码会像

 public partial class ThisAddIn
 {
    Outlook.Items items=null;
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
     Outlook.MAPIFolder inbox = 
    Application.Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
    items=inbox.Items;
    items.ItemAdd += new 
    Outlook.ItemsEvents_ItemAddEventHandler(InboxFolderItemAdded);
}

private void InboxFolderItemAdded(object Item)
{
    if (Item is Outlook.MailItem)
    {
        Debug.WriteLine("I'm in!");
        Outlook.MailItem mail = (Outlook.MailItem)Item;
        int[] answer = Predict(mail);

        if(answer[0] == 0) // Not spam
        {
            Outlook.MAPIFolder inboxFolder = ((Outlook.MAPIFolder)this.Application.ActiveExplorer().Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox));
            mail.Move(inboxFolder);
        }

        else if(answer[0] == 1) // Spam
        {
            Outlook.MAPIFolder junkFolder = ((Outlook.MAPIFolder)this.Application.ActiveExplorer().Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderJunk));
            mail.Move(junkFolder);
        }
    }
}

private int[] Predict(Outlook.MailItem mailBody)
{
    Debug.WriteLine("I'm inside in predict function");
    double[]feature = featureExtraction.findFeatureIncomingMail(mailBody.Body);
    int[] answer = tree.Decide(feature);
    return answer;
 }
}

未始终触发 Outlook ItemAdd 事件

Outlook ItemAdd event not triggered consistently

c#

outlook

vsto

outlook-addin