无法使用 Graph API v1.0 创建 ToDo 任务

Question

我正在尝试使用 graph api v1.0 的 ToDo Task 功能来使用以下代码创建任务

var result = graphServiceClient.Users[outlookUserId].Todo.Lists[listid].Tasks.Request().AddAsync(todoTask).Result;

但是，我收到以下错误：

Code: invalidRequest Message: A type named 'microsoft.toDo.todoTask' could not be resolved by the model. When a model is available, each type name must resolve to a valid type. Inner error: Code: InvalidModel AdditionalData: date: 2020-11-25T09:41:04 request-id: 39794548-8f63-443e-a8bc-76ad6091dc8d client-request-id: 39794548-8f63-443e-a8bc-76ad6091dc8d ClientRequestId: 39794548-8f63-443e-a8bc-76ad6091dc8d

为了解决上述问题，我将 todoTask 的 odatatype 设置为 null，但出现另一个异常：

Code: invalidRequest Message: A type named 'microsoft.toDo.dateTimeTimeZone' could not be resolved by the model. When a model is available, each type name must resolve to a valid type. Inner error: Code: InvalidModel AdditionalData: date: 2020-11-25T09:43:27 request-id: 0780add8-3f17-40c5-a92b-e9e62ad08bf8 client-request-id: 0780add8-3f17-40c5-a92b-e9e62ad08bf8 ClientRequestId: 0780add8-3f17-40c5-a92b-e9e62ad08bf8

为了解决上面的问题，我将类型为 DateTimeZone 的 todoTask 的所有数据成员的 odatatype 设置为 null，但随后出现以下异常：

Code: invalidRequest Message: A type named 'microsoft.toDo.itemBody' could not be resolved by the model. When a model is available, each type name must resolve to a valid type. Inner error: Code: InvalidModel AdditionalData: date: 2020-11-25T09:46:11 request-id: 5bafbcab-5090-47b5-ac8e-8c96ec1d6592 client-request-id: 5bafbcab-5090-47b5-ac8e-8c96ec1d6592 ClientRequestId: 5bafbcab-5090-47b5-ac8e-8c96ec1d6592

为了解决上面的问题，我将 todoTask 主体的 odatatype 设置为 null，但现在我遇到了以下无法解决的异常：

Code: generalException Message: Internal Server Error Inner error: AdditionalData: date: 2020-11-25T09:48:23 request-id: f5d52f43-c0b4-425e-83ec-652fadb7abf9 client-request-id: f5d52f43-c0b4-425e-83ec-652fadb7abf9 ClientRequestId: f5d52f43-c0b4-425e-83ec-652fadb7abf9

对于我们的应用程序，我们需要创建任务并同步到 outlook，因为这将投入生产，我们不能使用测试版。谁能帮我保存任务。

更新：

这是我如何设置 TodoTask 对象的代码：

var todoTask = new TodoTask();
todoTask.Title = "Subject";
todoTask.DueDateTime = new DateTimeTimeZone() { DateTime = dueDate.Date.ToString()};
todoTask.Status = TaskStatus.NotStarted;
todoTask.Importance = Importance.Normal;
todoTask.Body = new ItemBody
{
     Content = "Test",
     ContentType = BodyType.Text
};
todoTask.IsReminderOn = true;
todoTask.ReminderDateTime = new DateTimeTimeZone() { 
     DateTime = reminderTime.Value.ToString() };
todoTask.Extensions = new TodoTaskExtensionsCollectionPage();
todoTask.Extensions.Add(new OpenTypeExtension{
     ExtensionName = "TestProperty", 
     AdditionalData = new Dictionary<string,object>{{"MyProp","MyValue"}}});

Answer 1

设置odatatype为null后，还需要设置TimeZone 属性 for DueDateTime and ReminderDateTime.

例如：

        var todoTask = new TodoTask();
        todoTask.Title = "Subject2";
        todoTask.ODataType = null;
        DateTime dueDate = DateTime.UtcNow.Date;
        DateTime reminderTime = DateTime.UtcNow.Date;
        todoTask.DueDateTime = new DateTimeTimeZone() {
            TimeZone = "UTC",
            ODataType = null,
            DateTime = dueDate.Date.ToString() 
        };
        todoTask.Status = TaskStatus.NotStarted;
        todoTask.Importance = Importance.Normal;
        todoTask.Body = new ItemBody
        {
            ODataType = null,
            Content = "Test",
            ContentType = BodyType.Text
        };
        todoTask.IsReminderOn = true;
        todoTask.ReminderDateTime = new DateTimeTimeZone()
        {
            TimeZone = "UTC",
            ODataType = null,
            DateTime = reminderTime.Date.ToString()
        };
        todoTask.Extensions = new TodoTaskExtensionsCollectionPage();
        todoTask.Extensions.Add(new OpenTypeExtension
        {
            ExtensionName = "TestProperty",
            AdditionalData = new Dictionary<string, object> { { "MyProp", "MyValue" } }
        });