/// <summary>
/// Creates a data range for the year, month, day supplied.
/// </summary>
/// <param name="year"></param>
/// <param name="month"></param>
/// <param name="day"></param>
/// <returns></returns>
public static DateRange CreateForMonth(int year, int month, int day)
{
//var currentTime = new DateTime(year, month, 1);
DateTime refDate = new DateTime(year, month, 1);
DateRangeMonth range = new DateRangeMonth();
DateTime rangeStartDate = refDate;
// 1. Current month
// ( Total days, start date, start day indx )
range.TotalDays = DateHelper.GetDaysInMonth(month, year);
range.CurrentMonthStartDate = refDate;
range.CurrentMonthStartIndex = (int)range.CurrentMonthStartDate.DayOfWeek;
// 2. Last month
DateTime lastMonth = refDate.AddMonths(-1);
int daysToShowInLastMonth = range.CurrentMonthStartIndex;
range.TotalDaysInLastMonth = DateHelper.GetDaysInMonth(lastMonth.Month, lastMonth.Year);
if (daysToShowInLastMonth == 0)
{
rangeStartDate = range.CurrentMonthStartDate;
range.LastMonthStartDate = DateTime.MinValue;
}
else
{
int startDay = range.TotalDaysInLastMonth - (daysToShowInLastMonth - 1);
range.LastMonthStartDate = new DateTime(lastMonth.Year, lastMonth.Month, startDay);
rangeStartDate = range.LastMonthStartDate;
}
// 3. Current day index
range.CurrentDayIndex = day + daysToShowInLastMonth - 1;
// 4. Next month.
DateTime nextMonth = refDate.AddMonths(1);
int daysToShowInNextMonth = DateRangeMonth.TotalDaysVisible - (range.TotalDays + range.CurrentMonthStartIndex);
range.TotalDaysVisibleInNextMonth = daysToShowInNextMonth;
range.NextMonthStartIndex = DateRangeMonth.TotalDaysVisible - (daysToShowInNextMonth);
// 5. Now get the dates
CreateForXDays(range, DateRangeMonth.TotalDaysVisible, rangeStartDate, DateTime.Now);
return range;
}
/// <summary>
/// Creates a range for the month taking into account the start day of the week.
/// </summary>
/// <param name="year"></param>
/// <param name="month"></param>
/// <param name="day"></param>
/// <param name="startDayOfWeek"></param>
/// <returns></returns>
public static DateRange CreateForMonth(int year, int month, int day, string startDayOfWeek)
{
//var currentTime = new DateTime(year, month, 1);
DateTime refDate = new DateTime(year, month, 1);
DateTime currentMonthStartDate = refDate;
DateRangeMonth range = new DateRangeMonth();
// 1. Get the start day.
WeekRangeCalculator calc = new WeekRangeCalculator(startDayOfWeek);
DateTime rangeStartDate = calc.GetStartDayForDate(refDate);
// 2. Current month
range.CurrentMonthTotalDays = DateHelper.GetDaysInMonth(month, year);
range.CurrentMonthStartDate = currentMonthStartDate;
range.CurrentMonthStartIndex = calc.GetDayValue(refDate.DayOfWeek);
// 3. Last month
DateTime lastMonth = refDate.AddMonths(-1);
range.LastMonthTotalDays = DateHelper.GetDaysInMonth(lastMonth.Month, lastMonth.Year);
range.LastMonthStartDate = range.CurrentMonthStartIndex == 0 ? DateTime.MinValue : rangeStartDate;
range.LastMonthStartIndex = range.CurrentMonthStartIndex == 0 ? -1 : 0;
range.LastMonthDaysVisible = range.CurrentMonthStartIndex == 0 ? 0 : range.CurrentMonthStartIndex;
// 4. Next month
DateTime nextMonth = refDate.AddMonths(1);
range.NextMonthTotalDays = DateHelper.GetDaysInMonth(lastMonth.Month, lastMonth.Year);
range.NextMonthStartIndex = range.LastMonthDaysVisible + range.CurrentMonthTotalDays;
range.NextMonthStartDate = nextMonth;
// 5. Current day.
range.CurrentDayIndex = day + range.LastMonthDaysVisible - 1;
CreateForXDays(range, DateRangeMonth.TotalDaysVisible, rangeStartDate, DateTime.Now);
return range;
}
/// <summary>
/// Create the range for month supplied.
/// </summary>
/// <param name="month"></param>
/// <returns></returns>
public static DateRange CreateForPriorMonth(DateRangeMonth range)
{
DateTime month = range.CurrentMonthStartDate.AddMonths(-1);
int day = GetDayForMonth(month);
return CreateForMonth(month.Year, month.Month, day);
}
