摘要

有时在操作exchange的时候，需要查找用户exchange文件夹，比如用户新建了一些文件夹。

一个例子

这里以查找用户outlook邮箱中的历史对话文件夹为例。

private const ExchangeVersion EXCHANGE_VERSION = ExchangeVersion.Exchange2010_SP2;        private ExchangeService _service;             public MyExchangeClient(UserInfo userInfo)        {            if (userInfo == null)            {                throw new ArgumentNullException("user is empty");            }            this._userInfo = userInfo;            this._service = new ExchangeService(EXCHANGE_VERSION);   _service.Credentials = new NetworkCredential(userInfo.Itcode, userInfo.Pwd, _userInfo.Domain);                _service.Url = new Uri(ConfigManager.ExchangeServerUrl);                    }

/// 
        /// 查找对话历史文件夹        /// 
        /// 
             private Folder FindImHistoryFolder()        {            int _pageSize = 10;            FolderView folderView = new FolderView(_pageSize, 0);            folderView.PropertySet = new PropertySet(BasePropertySet.IdOnly);            folderView.PropertySet.Add(FolderSchema.DisplayName);            folderView.PropertySet.Add(FolderSchema.ChildFolderCount);            folderView.Traversal = FolderTraversal.Shallow;            Folder imHistoryFolder = null;            FindFoldersResults findFolderResults;            bool foundImHistoryFolder = false;            do            {                findFolderResults = this._service.FindFolders(WellKnownFolderName.MsgFolderRoot, folderView);                foreach (Folder folder in findFolderResults)                {                    if (folder.DisplayName.ToLower() == "conversation history" || folder.DisplayName.ToLower() == "对话历史记录")                    {                        imHistoryFolder = folder;                        foundImHistoryFolder = true;                    }                }                folderView.Offset += _pageSize;            } while (findFolderResults.MoreAvailable && !foundImHistoryFolder);            return imHistoryFolder;        }