跳过周六和周日，并从 ASP.NET 的当前日期获取日期

Question

我使用以下代码跳过周六和周日，只获取特定小时数的工作日，实际上我的任务是什么：

我

有一个项目和具体时间来完成它，现在我只想显示项目完成的日期。

我的代码是：

DateTime date = DateTime.Now;
    Int32 d = 1;
    Int32 result = 260 / 8;
    for (d = 0; d <= result; d++)
    {
        if (date.DayOfWeek.ToString() == "Saturday" || date.DayOfWeek.ToString() == "Sunday")
        {
            d = d - 1;
            date = date.AddDays(1);
        }
        else
        {
            date = date.AddDays(1);
        }
    }
    lbldate.Text = date.ToString();

它的工作正常长达 30 天，当天是 32 然后日期应该到来是 ：： 25th Nov 2013但它将于2013年11月26日到来。

请告诉我我哪里犯了错误。

Answer 1

也许有一些更优雅的东西，但它有效并且不需要循环：

public static DateTime GetDateIn(int numWorkingHours)
{
    int numDays = numWorkingHours / 8;
    DateTime date = DateTime.Now;
    // normalize to monday
    if (date.DayOfWeek == DayOfWeek.Saturday || date.DayOfWeek == DayOfWeek.Sunday)
        date = date.AddDays(date.DayOfWeek == DayOfWeek.Sunday ? 1 : 2); 
    int weeks = numDays / 5;
    int remainder = numDays % 5;
    date = date.AddDays(weeks * 7 + remainder);  
    // normalize to monday
    if (date.DayOfWeek == DayOfWeek.Saturday || date.DayOfWeek == DayOfWeek.Sunday)
        date = date.AddDays(date.DayOfWeek == DayOfWeek.Sunday ? 1 : 2);    
    return date;
}

演示

Answer 2

一个可行的解决方案是：

DateTime endDate = DateTime.Now;
double remainingAmountOfWorkingDays = Math.Round(260d / 8d);
while (remainingAmountOfWorkingDays > 0)
  {
    endDate = endDate.AddDays(1);
    if (endDate.DayOfWeek == DayOfWeek.Saturday || endDate.DayOfWeek == DayOfWeek.Sunday)
       continue;
    Console.WriteLine(remainingAmountOfWorkingDays +" "+endDate.ToString("dddd dd.MM.yyyy"));
    remainingAmountOfWorkingDays--;
  }           

Answer 3

而不是从 d 变量中减去

使用以下代码以防它是假日周六或周日

date.Subtract(new TimeSpan(1, 0, 0, 0)); // where 1 is day count you need to subtract