public static void GetWeekWorkTime(int nYear, int nNumWeek, out DateTime dtWeekStart, out DateTime dtWeekeEnd)
{
DateTime time = new DateTime(nYear, 1, 1);
time += new TimeSpan((nNumWeek - 1) * 7, 0, 0, 0);
dtWeekStart = time.AddDays((double)(-time.DayOfWeek + 1));
dtWeekeEnd = time.AddDays((double)((6 - time.DayOfWeek) + 1)).AddDays(-2.0);
}
/// <summary>
/// 得到一年中的某周的起始日和截止日 周一到周五 工作日
/// </summary>
/// <param name="_"></param>
/// <param name="nYear">年份</param>
/// <param name="nNumWeek">第几周</param>
/// <param name="dtWeekStart">开始日期</param>
/// <param name="dtWeekeEnd">结束日期</param>
public static void GetWeekWorkTime(this DateTime _, int nYear, int nNumWeek, out DateTime dtWeekStart, out DateTime dtWeekeEnd)
{
var dt = new DateTime(nYear, 1, 1);
dt += new TimeSpan((nNumWeek - 1) * 7, 0, 0, 0);
dtWeekStart = dt.AddDays(-(int)dt.DayOfWeek + (int)DayOfWeek.Monday);
dtWeekeEnd = dt.AddDays((int)DayOfWeek.Saturday - (int)dt.DayOfWeek + 1).AddDays(-2);
}
/// <summary>
/// 得到一年中的某周的起始日和截止日（星期日是第一天）
/// </summary>
/// <param name="dt"></param>
/// <param name="year">年份</param>
/// <param name="week">第几周（为0时从dt获取）</param>
/// <param name="dtStart">开始日期</param>
/// <param name="dtEnd">结束日期</param>
public static void GetWeekTime(this DateTime dt, int year, int week, out DateTime dtStart, out DateTime dtEnd)
{
var date = new DateTime(year > 0 ? year : dt.Year, 1, 1);
date += new TimeSpan((week - 1) * 7, 0, 0, 0);
dtStart = date.AddDays(-(int)date.DayOfWeek + 1);
dtEnd = date.AddDays(7 - (int)date.DayOfWeek);
}
public static void GetWeek(int nYear, int nNumWeek, out DateTime dtWeekStart, out DateTime dtWeekeEnd)
{
DateTime d = new DateTime(nYear, 1, 1);
d += new TimeSpan((nNumWeek - 1) * 7, 0, 0, 0);
int num = (int)d.DayOfWeek;
if (num == 0)
{
num = 7;
}
dtWeekStart = d.AddDays((double)(-(double)num + 1));
dtWeekeEnd = d.AddDays((double)(6 - num + 1));
}
private void OnTimePickerSelectedTimeChanged(object sender, EventArgs e)
{
TimeSpan newTimeOfDay = this.schedulerTimePicker.SelectedTime;
if (this.SelectedDateTime.HasValue)
{
if (this.SelectedDateTime.Value.TimeOfDay == newTimeOfDay)
{
return;
}
else
{
if (this.TimePickerStartTime > newTimeOfDay)
{
newTimeOfDay = newTimeOfDay.AddDays(1);
}
this.SelectedDateTime = this.SelectedDateTime.Value.Date.Add(newTimeOfDay);
}
}
else
{
this.SelectedDateTime = DateTime.Today.Add(newTimeOfDay);
}
}
static void Main(string[] args)
{
DateTime dt = new DateTime(2013, 1, 22);
DateTime t = DateTime.Now;
t -= new TimeSpan((int)t.DayOfWeek, 0, 0, 0);
Console.WriteLine("start:" + t.ToString());
Console.WriteLine("end:" + t.AddDays(7));
Console.WriteLine("-------List----");
for (int i = 0; i < 7; i++)
{
Console.WriteLine("date: " + t.AddDays(i));
}
Console.ReadLine();
}
public void AddDays_SubtractValue()
{
var target = new TimeSpan(4, 2, 3, 4);
var expected = new TimeSpan(3, 2, 3, 4);
//Act
var actual = target.AddDays(-1);
//Assert
actual.Should().Be(expected);
}
public void AddDays_AddValue()
{
var target = new TimeSpan(1, 2, 3, 4);
var expected = new TimeSpan(2, 2, 3, 4);
//Act
var actual = target.AddDays(1);
//Assert
actual.Should().Be(expected);
}
static void Main(string[] args)
{
DateTime t = DateTime.Now; //Your selected date from Calendar
t -= new TimeSpan((int)t.DayOfWeek, 0, 0, 0);
Console.WriteLine("\tstart: " + t.Date.ToShortDateString());
Console.WriteLine("\tend: " + t.Date.AddDays(7).ToShortDateString());
Console.WriteLine("\t" + new string('-', 25));
for (int i = 0; i < 7; i++)
{
var d = t.AddDays(i);
if (d.DayOfWeek >= DayOfWeek.Monday && d.DayOfWeek <= DayOfWeek.Friday) //Range: Monday to Friday
{
Console.WriteLine(d.DayOfWeek + " : " + d);
}
}
Console.ReadLine();
}
public static TimeSpan?AddDays(this TimeSpan?time, int days)
{
return(time?.AddDays(days)
?? default(TimeSpan?));
}
public static TimeSpan AddWeeks(this TimeSpan timeSpan, double value)
{
return(timeSpan.AddDays(value * 7));
}
