如何使用 EWS 托管 API 访问共享日历

Question

如何使用 Exchange EWS API 仅检索共享日历。

我如何知道使用 Exchange EWS API 共享的日历。

Answer 1

您可以在FolderId 中指定要访问的日历。

FolderId folderIdFromCalendar = new FolderId(WellKnownFolderName.Calendar, "sharedInbox@example.com");

然后您可以使用folderIdFromCalendar 来检索您想要的日历项目，例如：

FindItemsResults<Item> appointments = ExchangeServive.FindItems(folderIdFromCalendar, ItemView);

请记住，该程序必须在与邮箱共享的用户的上下文中运行。

更新：

如果您碰巧知道FolderId，您可以通过执行以下代码检查当前用户是否有权访问此日历：

如上，你需要初始化一个FolderId：

FolderId folderIdFromCalendar = new FolderId("AQMkADAwATM3ZmYAZS1kNjE0LWU1ZmQtMDACLTAwCgAuAAADJRMtiupYBUGD‌​cKdcqUrr3AEA1/sqwbrw‌​UEeFM0Mc+UBFoQAAABzk‌​m1sAAAA=");

之后，试试下面的代码：

if (folderIdFromCalendar != null)
    {
        try
        {
            ItemView cView = new ItemView(1000);
            FindItemsResults<Item> appointments = service.FindItems(folderIdFromCalendar, cView);
            int count = appointments.TotalCount; //just an example of some random action on the folder calendar
        }
        catch (ServiceResponseException ex)
        {
            Console.WriteLine("The specified calendar was not shared with you. \n" + ex);
        }
    }
    else
    {
        Console.WriteLine("The specified calendar ID could not be linked to a calendar folder.");
    }

另一个更新：

if (folderIdFromCalendar != null)
    {
        if (folderIdFromCalendar.Mailbox.ToString().ToLower() == "your-Mailadress".ToLower())
        {
            Console.WriteLine("The folder you specified is your own");
        }
        else
        {
            try
            {
                ItemView cView = new ItemView(1000);
                FindItemsResults<Item> appointments = service.FindItems(folderIdFromCalendar, cView);
                int count = appointments.TotalCount; //just an example of some random action on the folder calendar
                Console.WriteLine("You have been given access to this mailbox. Its owner is: " + folderIdFromCalendar.Mailbox.ToString()); //if you need to know, whos mailbox you are accessing right now
            }
            catch (ServiceResponseException ex)
            {
                Console.WriteLine("The specified calendar was not shared with you. \n" + ex);
            }
        }
    }
    else
    {
        Console.WriteLine("The specified calendar ID could not be linked to a calendar folder.");
    }

最后更新：

我现在已经用谷歌搜索了很多，发现了一些对我有用的东西。但老实说，我并没有完全理解下面代码中的所有内容：

FolderId folderIdFromCalendar = new FolderId("AQMkADAwATM3ZmYAZS1kNjE0LWU1ZmQtMDACLTAwCgAuAAADJRMtiupYBUGD‌​cKdcqUrr3AEA1/sqwbrw‌​UEeFM0Mc+UBFoQAAABzk‌​m1sAAAA=");
    Folder folderFromCalendar = Folder.Bind(service, folderIdFromCalendar);

    AlternateId aiAlternateid = new AlternateId(IdFormat.EwsId, folderFromCalendar.Id.UniqueId, "random@mailadress.com");
    AlternateIdBase aiResponse = service.ConvertId(aiAlternateid, IdFormat.EwsId);

    var mailbox = ((AlternateId)aiResponse).Mailbox;

    if (folderFromCalendar != null)
    {
        if (mailbox.ToString().ToLower() == "your-Mailadress".ToLower())
        {
            Console.WriteLine("The folder you specified is your own");
        }
        else
        {
            try
            {
                ItemView cView = new ItemView(1000);
                FindItemsResults<Item> appointments = service.FindItems(folderIdFromCalendar, cView);
                int count = appointments.TotalCount; //just an example of some random action on the folder calendar
                Console.WriteLine("You have been given access to this mailbox. Its owner is: " + mailbox.ToString());
            }
            catch (ServiceResponseException ex)
            {
                Console.WriteLine("The specified calendar was not shared with you. \n" + ex);
            }
        }
    }
    else
    {
        Console.WriteLine("The specified calendar ID could not be linked to a calendar folder.");
    }

我不明白，字符串“random@mailadress.com”如何影响该程序中的任何内容，但语法需要一个字符串。