//rebinds to the dates
void ReBindListOfDays()
{
if (datesList != null)
{
//Please note that the DateHelper.GetDaysOfMonth gets the days from a cache so it will not have a performance hit to call it everytime
int numberOfDaysFromPreviousMonth =
(int)DateHelper.GetDayOfWeek(currentlyViewedYear, currentlyViewedMonth, 1);
DayCell[] newDaysTemp = dateHelper.GetDaysOfMonth(currentlyViewedMonth, currentlyViewedYear, MinDate, MaxDate);
//get the last day of the month and determine the number of days to show from next month
int numberOfDaysFromNextMonth = 6 - (int)DateHelper.GetDayOfWeek(currentlyViewedYear, currentlyViewedMonth, newDaysTemp[newDaysTemp.Length - 1].DayNumber);
DayCell[] newDays = new DayCell[newDaysTemp.Length + numberOfDaysFromNextMonth];
int monthToGetNext;
int yearTogetNext;
//get the next month
DateHelper.MoveMonthForward(currentlyViewedMonth, currentlyViewedYear, out monthToGetNext, out yearTogetNext);
//get the data for next month
DayCell[] nextDays = dateHelper.GetDaysOfMonth(monthToGetNext, yearTogetNext, MinDate, MaxDate); //get the next month
newDaysTemp.CopyTo(newDays, 0); //copy the new days array
Array.Copy(nextDays, 0, newDays, newDaysTemp.Length, newDays.Length - newDaysTemp.Length);
DayCell[] listOfDays = new DayCell[numberOfDaysFromPreviousMonth + newDays.Length];
int monthToGetPrevious;
int yearTogetPrevious;
//move one month back
DateHelper.MoveMonthBack(currentlyViewedMonth, currentlyViewedYear, out monthToGetPrevious, out yearTogetPrevious);
DayCell[] oldDays = dateHelper.GetDaysOfMonth(monthToGetPrevious, yearTogetPrevious, MinDate, MaxDate);//get the previous month
Array.Copy(oldDays, oldDays.Length - numberOfDaysFromPreviousMonth, listOfDays, 0, numberOfDaysFromPreviousMonth);
Array.Copy(newDays, 0, listOfDays, numberOfDaysFromPreviousMonth, newDays.Length);
//set the item source to the days to show
datesList.ItemsSource = listOfDays;
}
}
/// <summary>
/// Generates an array of days in a month
/// </summary>
/// <param name="month">The month to get the days for </param>
/// <param name="year">The year to get the days for </param>
/// <param name="maxDate">The max date to generate enabled cells</param>
/// <param name="minDate">The min date to generate enabled cells</param>
/// <returns>Returns an int array full of days in a month</returns>
public DayCell[] GetDaysOfMonth(int month, int year,
DateTime minDate, DateTime maxDate)
{
KeyValuePair<int, int> key = new KeyValuePair<int, int>(month, year);
int daysCount = DateTime.DaysInMonth(year, month);
DayCell[] days = null;
if (daysArrays.ContainsKey(key))
{
days = daysArrays[key];
foreach (DayCell item in days)
item.IsEnabled = IsDateWithinRange(minDate, maxDate, item);
}
else
{
days = new DayCell[daysCount];
for (int i = 0; i < days.Length; i++)
{
DayCell item = new DayCell(i + 1, month, year);
item.IsEnabled = IsDateWithinRange(minDate, maxDate, item);
days[i] = item;
}
daysArrays[key] = days;//cache the array
}
return days;
}
//rebinds to the dates
void ReBindListOfDays()
{
if (datesList != null)
{
//Please note that the DateHelper.GetDaysOfMonth gets the days from a cache so it will not have a performance hit to call it everytime
int numberOfDaysFromPreviousMonth =
(int)DateHelper.GetDayOfWeek(currentlyViewedYear, currentlyViewedMonth, 1);
DayCell[] newDaysTemp = dateHelper.GetDaysOfMonth(currentlyViewedMonth, currentlyViewedYear, MinDate, MaxDate);
//get the last day of the month and determine the number of days to show from next month
int numberOfDaysFromNextMonth = 6 - (int)DateHelper.GetDayOfWeek(currentlyViewedYear, currentlyViewedMonth, newDaysTemp[newDaysTemp.Length - 1].DayNumber);
DayCell[] newDays = new DayCell[newDaysTemp.Length + numberOfDaysFromNextMonth];
int monthToGetNext;
int yearTogetNext;
//get the next month
DateHelper.MoveMonthForward(currentlyViewedMonth, currentlyViewedYear, out monthToGetNext, out yearTogetNext);
//get the data for next month
DayCell[] nextDays = dateHelper.GetDaysOfMonth(monthToGetNext, yearTogetNext, MinDate, MaxDate);//get the next month
newDaysTemp.CopyTo(newDays, 0);//copy the new days array
Array.Copy(nextDays, 0, newDays, newDaysTemp.Length, newDays.Length - newDaysTemp.Length);
DayCell[] listOfDays = new DayCell[numberOfDaysFromPreviousMonth + newDays.Length];
int monthToGetPrevious;
int yearTogetPrevious;
//move one month back
DateHelper.MoveMonthBack(currentlyViewedMonth, currentlyViewedYear, out monthToGetPrevious, out yearTogetPrevious);
DayCell[] oldDays = dateHelper.GetDaysOfMonth(monthToGetPrevious, yearTogetPrevious, MinDate, MaxDate);//get the previous month
Array.Copy(oldDays, oldDays.Length - numberOfDaysFromPreviousMonth, listOfDays, 0, numberOfDaysFromPreviousMonth);
Array.Copy(newDays, 0, listOfDays, numberOfDaysFromPreviousMonth, newDays.Length);
//set the item source to the days to show
datesList.ItemsSource = listOfDays;
foreach (var day in listOfDays)
{
if (day.YearNumber == CurrentlySelectedDate.Year &&
day.MonthNumber == CurrentlySelectedDate.Month &&
day.DayNumber == CurrentlySelectedDate.Day)
{
datesList.SelectedItem = day;
}
}
}
}
DateTime GetDateFromCell(DayCell cell)
{
return new DateTime(cell.YearNumber, cell.MonthNumber, cell.DayNumber);
}
DateTime GetDateFromCell(DayCell cell)
{
return(new DateTime(cell.YearNumber, cell.MonthNumber, cell.DayNumber));
}
/// <summary>
/// Checks if the specified date is greater than
/// </summary>
/// <param name="minDate">The min date</param>
/// <param name="maxDate">The max date</param>
/// <param name="cell">The cell to check</param>
/// <returns>Returns true if the cell is greater</returns>
public static bool IsDateWithinRange(DateTime minDate, DateTime maxDate, DayCell cell)
{
long ticks = new DateTime(cell.YearNumber, cell.MonthNumber, cell.DayNumber).Ticks;
return ticks >= minDate.Ticks && ticks <= maxDate.Ticks;
}
