[英]Skip Sat and Sunday and get the date by from the current date in ASP.NET?
我正在使用以下代碼跳過周六和周日,只獲取特定小時數的工作日,這實際上是我的任務:
我有一個項目和完成該項目的具體時間,現在我只想顯示項目完成的日期。
我的代碼是:
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();
它的正常工作時間為30天(天數為32天,然后日期應為:2013年11月25日,但即將於2013年11月26日)。
請告訴我我在哪里犯錯。
一個可行的解決方案是:
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--;
}
也許有一些更優雅的方法,但是它可以工作並且不需要循環:
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;
}
而不是從d變量中減去
如果是假日星期六或星期日,請使用以下代碼
date.Subtract(new TimeSpan(1, 0, 0, 0)); // where 1 is day count you need to subtract
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