使用c#按关键字搜索Microsoft365个日历事件的MS图API

Question

我需要按关键字进行搜索，以便只检索包含该关键字的事件。我已经得到了一个解决我的部分问题的答案(过滤主题)，但我仍然需要搜索身体预览。

我试图在这段代码中添加搜索(或筛选)参数：

..。

protected override async void OnAppearing()
    {
        base.OnAppearing();

        // Get start and end of week in user's time zone
        // I replaced variables below by pure strings on QueryOption <== DOES WORKS FINE
        //var startOfWeek = GetUtcStartOfWeekInTimeZone(DateTime.Today, App.UserTimeZone);
        //var endOfWeek = startOfWeek.AddDays(30);  //Eloir: original AddDays(7)

        var queryOptions = new List<QueryOption>
        {
            //new QueryOption("$search", "BodyPreview:stackoverflow"),  <== DOES NOT WORK
            new QueryOption("startDateTime", "01/01/2020 00:00:00"),  
            new QueryOption("endDateTime", "31/12/2020 23:59:59")

        };

        var timeZoneString =
            Xamarin.Forms.Device.RuntimePlatform == Xamarin.Forms.Device.UWP ?
                App.UserTimeZone.StandardName : App.UserTimeZone.DisplayName;

        // Get the events
        var events = await App.GraphClient.Me.CalendarView.Request(queryOptions)
            .Header("Prefer", $"outlook.timezone=\"{timeZoneString}\"")
            //.Filter("BodyPreview contains 'stackoverflow'")  <== DOES NOT WORK EITHER

            .Select(e => new
            {
                e.Subject,
                e.BodyPreview,
                e.Start,
                e.End
            })
            .OrderBy("start/DateTime")
            .Top(50)
            .GetAsync();

        // Add the events to the list view
        CalendarList.ItemsSource = events.CurrentPage.ToList();

    }

..。此代码是Microsoft docs站点的一部分：用MicrosoftGraph构建Xamarin应用程序。

Answer 1

CalendarView仅在指定的时间范围内提供扩展事件的列表，不支持其他筛选。

可以使用me/events端点通过dateTime和subject或bodyPreview进行筛选。

GET https://graph.microsoft.com/v1.0/me/events?$filter=start/dateTime ge '2021-09-06T08:00' and end/dateTime lt '2021-09-30T08:00' and contains(subject,'planning')

C#

await App.GraphClient.Me.Events.Request()
    .Filter("start/dateTime ge '2021-09-06T08:00' and end/dateTime lt '2021-09-30T08:00' and contains(subject,'planning')")
    .Select(e => new
        {
            e.Subject,
            e.BodyPreview,
            e.Start,
            e.End
        })
        .OrderBy("start/DateTime")
        .Top(50)
        .GetAsync();