如何使用C#为outlook中的多个文件夹添加ItemAddEventHandler？

using Outlook = Microsoft.Office.Interop.Outlook;

Outlook.Application outlookApp = new Outlook.Application();
Outlook.NameSpace outlookNamespace = outlookApp.GetNamespace("MAPI");

Outlook.MAPIFolder inboxFolder = outlookNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
Outlook.MAPIFolder targetFolder = null;

foreach (Outlook.MAPIFolder folder in inboxFolder.Folders)
{
    if (folder.Name == "目标文件夹名称")
    {
        targetFolder = folder;
        break;
    }
}

Outlook.Items items = targetFolder.Items;
items.ItemAdd += new Outlook.ItemsEvents_ItemAddEventHandler(Items_ItemAdd);

private void Items_ItemAdd(object item)
{
    // 在此处处理添加到目标文件夹的新项
}