//LoadItems comes from Parent Class
public override ObservableCollection <CustomDay> LoadItems()
{
{
CustomMonth cm = MonthHelper.CreateMonth(DateTime.Now);
ObservableCollection <CustomDay> dayList = new ObservableCollection <CustomDay>();
foreach (var item in cm.Days)
{
dayList.Add(item);
}
CustomMonthList.Add(cm);
return(dayList);
}
}
//Add a month to the current date and refresh the displayed calendar
private void Next()
{
SessionManager.CurrentDate = SessionManager.CurrentDate.AddMonths(1);
CustomMonth cm = (customMonthList.Where(x => x.Month == SessionManager.CurrentDate.Month && x.Year == SessionManager.CurrentDate.Year).FirstOrDefault());
if (cm == null)
{
cm = MonthHelper.CreateMonth(SessionManager.CurrentDate);
}
ObservableCollection <CustomDay> dayList = new ObservableCollection <CustomDay>();
foreach (var item in cm.Days)
{
dayList.Add(item);
}
Items = dayList;
//RaisePropertyChanged is here to update the label along with the dates themselves
RaisePropertyChanged(nameof(Month));
RaisePropertyChanged(nameof(Year));
dayList.Where(x => x.DayInMonth == 1).FirstOrDefault().SelectedEvent.Invoke(this, EventArgs.Empty);
CustomMonthList.Add(cm);
}
public static CustomMonth CreateMonth(DateTime d)
{
const int maxcustomDays = 42;
CustomMonth cm = new CustomMonth();
cm.Year = d.Year;
cm.Month = d.Month;
int allCreatedDays = 0;
int dayInMonth;
int month;
int year;
// Get Max day from the current month
int maxDays = DicoMonthAndMaxDay.MonthMaxDay.Where(x => x.Key == d.Month).FirstOrDefault().Value;
// Set maxDay to 29 if leap year and month is February
if (DateTime.IsLeapYear(d.Year) && d.Month == 2)
{
maxDays = 29;
}
// Maximum number of days in the month before the month from datetime parameter.
int maxDaysLastMonth;
//Condition for january only to prevent nullreferenceExcepetion
if (d.Month == 1)
{
maxDaysLastMonth = DicoMonthAndMaxDay.MonthMaxDay.Where(x => x.Key == d.Month).FirstOrDefault().Value;
}
//see maxdays above
else
{
maxDaysLastMonth = DicoMonthAndMaxDay.MonthMaxDay.Where(x => x.Key == d.Month - 1).FirstOrDefault().Value;
//Set maxDaysLastMonth to 29 if leap year and last month is February
if (DateTime.IsLeapYear(d.Year) && d.Month == 3)
{
maxDaysLastMonth = 29;
}
}
//cast to get the number from the enum DayOfweek see DayOfWeekSearch for more infos
int dow = (int)DayOfWeekSearch(d);
// if dow is sunday set it to 7 not 0 to prevent skipping the next loop
if (dow == 0)
{
dow = 7;
}
// set dayofweek in the customday
int count = 0;
//Fill the first week of the customMonth with the last days from the last month(e.g. mon26, tue27, wed28...)
//(Exemple March 2018)
//Loop 1
for (int i = dow; i > 1; i--)
{
// +2 because we want the last itteration assign maxDaysLastMonth to cd.DayInMonth
dayInMonth = maxDaysLastMonth - i + 2;
// add cd.month to get the month in the view (ComboBox event Date)
month = d.Month - 1;
year = d.Year;
if (month == 0)
{
month = 12;
year = d.Year - 1;
}
CustomDay cd = new CustomDay(dayInMonth, month, year);
cd.DayInWeek = count + 1;
// add customday in the right column
cm.Days.Add(cd);
count++;
allCreatedDays++;
}
//Represents the day of the real month (similar to "Day" in the DateTime class)
int currentDay = 1;
//Fill the customMonth starting where the "Loop 1" ended until the end of the real month (e.g. thu1, fri2... => fri30, sat31)
//Loop 2
for (int i = dow; i <= (maxDays + dow) - 1; i++)
{
int resultDow = i % 7;
if (resultDow == 0)
{
resultDow = 7;
}
month = d.Month;
year = d.Year;
dayInMonth = currentDay;
CustomDay cd = new CustomDay(dayInMonth, month, year);
cd.DayInWeek = resultDow;
cm.Days.Add(cd);
currentDay++;
allCreatedDays++;
}
//Reset count to assign dayInWeek to all remaining customsDays
count = 1;
//Fill the rest of the custom month (until 42 customDays created)
//Loop 3
for (int i = allCreatedDays; i < maxcustomDays; i++)
{
int resultDow = allCreatedDays + 1 % 7;
if (resultDow == 0)
{
resultDow = 7;
}
year = d.Year;
month = d.Month + 1;
if (month == 13)
{
month = 1;
year = d.Year + 1;
}
dayInMonth = count;
CustomDay cd = new CustomDay(dayInMonth, month, year);
cd.DayInWeek = resultDow;
cm.Days.Add(cd);
count++;
currentDay++;
allCreatedDays++;
}
return(cm);
}
