我创建的DateTime对象与DateTime.Now之间的区别 [英] Difference between a DateTime object I create and DateTime.Now
问题描述
我正在尝试使用Exchange 2007 API查询特定用户的日历可用性.我的示例代码产生了以下异常:
I'm trying to use the Exchange 2007 API to query calendar availability for a specific user. My sample code is producing the following exception:
为FreeBusyViewOptions.TimeWindow指定的持续时间为 无效.
The time duration specified for FreeBusyViewOptions.TimeWindow is invalid.
这是示例代码:
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
service.AutodiscoverUrl("email@domain.com");
DateTime startTime = new DateTime(2012, 1, 6, 7, 0, 0);
TimeWindow tw = new TimeWindow(startTime, startTime.AddHours(8));
GetUserAvailabilityResults result = service.GetUserAvailability(new List<AttendeeInfo> { new AttendeeInfo("email@domain.com") }, tw, AvailabilityData.FreeBusyAndSuggestions);
更奇怪的是，如果我将startTime分配替换为以下内容，它将起作用:
The wierd thing is, if I replace my startTime assignment with the following it works:
DateTime startTime = DateTime.Now;
我创建的DateTime对象与DateTime.Now生成的对象之间有什么区别?我在调试时已对它们进行了详细检查，没有发现任何区别.
What's the difference between the DateTime object I created and the object produced by DateTime.Now. I've examined them in detail while debugging and can't find a difference.
有什么想法吗?
推荐答案
与任何DateTime操作相反，这实际上是GetUserAvailability方法中的问题.
This actually appears to be an issue in the GetUserAvailability method as opposed to any DateTime manipulation.
根据 MSDN文档:
GetUserAvailability(Generic，TimeWindow，AvailabilityData，AvailabilityOptions)方法仅支持至少24小时长且始于12:00 a.m的时间段.要将方法的结果限制为较短的时间，必须在客户端上过滤结果.
The GetUserAvailability(Generic ,TimeWindow,AvailabilityData,AvailabilityOptions) method supports only time periods that are a minimum of 24 hours long and that begin and end at 12:00a.m. To restrict the results of the method to a shorter time period, you must filter the results on the client.
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