IEnumerable除了不工作

时间:2016-01-19 22:06:49

标签: c# ienumerable

我有以下代码

var

然而,除非取消公众假期。

公众假期的时间部分均为零。

1 个答案:

答案 0 :(得分:3)

试试这个:

public static DateTime AddWorkingDays(int workingDays, DateTime startDate)
{
    var workDaysQuery = from n in Enumerable.Range(0, (workingDays + 14) * 2)
                        let date = startDate.AddDays(n)
                        where (date.DayOfWeek != DayOfWeek.Sunday)
                        && (date.DayOfWeek != DayOfWeek.Saturday)
                        select date.Date; //Remove the time component

    //The following change is not needed if you know for sure that 
    //values returned by GetPublicHolidays() will not include a time component
    var publicHolidays = GetPublicHolidays().Select(x => x.Date);

    var daysWorking = workDaysQuery.Except(publicHolidays).ToArray(); 

    return daysWorking.Skip(workingDays).First();
}

基本上,如果两个DateTime值具有相同的日期(年,月和日),但时间分量不同,则系统会将它们视为不相等。

上面的代码是什么,它使用Date属性只获取日期组件(没有时间)。这样,相等性检查(由Except在内部完成)将是正确的。