exchange-server - 如何使用 Exchange Web 服务 (EWS) 检索全局联系人？

Question

我正在使用 EWS 并希望从公司的交易所获取全局地址列表。我知道如何检索个人联系人列表。

API 文档中的所有示例都涉及更新用户信息，但没有具体说明如何检索它们。

我什至尝试了以下列出文件夹，但它没有产生正确的结果。

private static void ListFolder(ExchangeService svc, FolderId parent, int depth) {
    string s;
    foreach (var v in svc.FindFolders(parent, new FolderView(int.MaxValue))) {
        Folder f = v as Folder;
        if (f != null) {
            s = String.Format("[{0}]", f.DisplayName);
            Console.WriteLine(s.PadLeft(s.Length + (depth * 2)));
            ListFolder(svc, f.Id, depth + 1);

            try {
                foreach (Item i in f.FindItems(new ItemView(20))) {
                    Console.WriteLine(
                        i.Subject.PadLeft(i.Subject.Length + ((depth + 1) * 2)));
                }
            } catch (Exception) {
            }
        }
    }
}

虽然已经提出了这个问题 ( How to get contact list from Exchange Server? ) 这个问题专门涉及使用 EWS 来获取全局地址列表，而这个问题在一般层面上寻求建议。

Answer 1

您可能会使用以下代码片段在指定文件夹中获得 ItemType 对象
然后将 ItemType 对象转换为 ContactItemType(对于联系人对象)....

/// <summary>
    /// gets list of ItemType objects with maxreturncriteria specicification
    /// </summary>
    /// <param name="esb">ExchangeServiceBinding object</param>
    /// <param name="folder">FolderIdType to get items inside</param>
    /// <param name="maxEntriesReturned">the max count of items to return</param>
    public static List<ItemType> FindItems(ExchangeServiceBinding esb, FolderIdType folder, int maxEntriesReturned)
    {
        List<ItemType> returnItems = new List<ItemType>();
        // Form the FindItem request 
        FindItemType request = new FindItemType();
        request.Traversal = ItemQueryTraversalType.Shallow;
        request.ItemShape = new ItemResponseShapeType();
        request.ItemShape.BaseShape = DefaultShapeNamesType.AllProperties;
        request.ParentFolderIds = new FolderIdType[] { folder };
        IndexedPageViewType indexedPageView = new IndexedPageViewType();
        indexedPageView.BasePoint = IndexBasePointType.Beginning;
        indexedPageView.Offset = 0;
        indexedPageView.MaxEntriesReturned = 100;
        indexedPageView.MaxEntriesReturnedSpecified = true;
        request.Item = indexedPageView;
        FindItemResponseType response = esb.FindItem(request);
        foreach (FindItemResponseMessageType firmtMessage in response.ResponseMessages.Items)
        {
            if (firmtMessage.ResponseClass == ResponseClassType.Success)
            {
                if (firmtMessage.RootFolder.TotalItemsInView > 0)
                    foreach (ItemType item in ((ArrayOfRealItemsType)firmtMessage.RootFolder.Item).Items)
                        returnItems.Add(item);
                        //Console.WriteLine(item.GetType().Name + ": " + item.Subject + ", " + item.DateTimeReceived.Date.ToString("dd/MM/yyyy"));
            }
            else
            {
             //handle error log  here
            }
        }
        return returnItems;
    }