internal bool MoveCurrentDown(bool isControlModifierDown)
{
bool handled = false;
if (isControlModifierDown)
{
if (this.CurrentDate != DateTime.MinValue && this.Owner.DisplayMode != CalendarDisplayMode.MonthView)
{
this.Owner.RaiseMoveToLowerCommand(this.CurrentDate);
// CurrentDate is not changed but we need to update the visuals on view change.
this.AsyncUpdateCurrencyPresenters(this.CurrentDate, this.CurrentDate);
handled = true;
}
}
else
{
if (this.CurrentDate == DateTime.MinValue)
{
this.CurrentDate = CalendarMathHelper.GetFirstDateForCurrentDisplayUnit(this.Owner.DisplayDate, this.Owner.DisplayMode);
}
else
{
DateTime dateToNavigate = CalendarMathHelper.IncrementByCell(this.CurrentDate, this.Owner.Model.ColumnCount, this.Owner.DisplayMode);
this.Owner.RaiseMoveToDateCommand(dateToNavigate);
this.CurrentDate = dateToNavigate;
}
handled = true;
}
return(handled);
}
internal bool MoveCurrentUp(bool isControlModifierDown)
{
bool handled = false;
if (isControlModifierDown)
{
if (this.Owner.DisplayMode != CalendarDisplayMode.CenturyView)
{
this.Owner.RaiseMoveToUpperViewCommand();
if (this.CurrentDate != DateTime.MinValue)
{
this.AsyncUpdateCurrencyPresenters(this.CurrentDate, this.CurrentDate);
}
handled = true;
}
}
else
{
if (this.CurrentDate == DateTime.MinValue)
{
this.CurrentDate = CalendarMathHelper.GetFirstDateForCurrentDisplayUnit(this.Owner.DisplayDate, this.Owner.DisplayMode);
}
else
{
DateTime dateToNavigate = CalendarMathHelper.IncrementByCell(this.CurrentDate, -this.Owner.Model.ColumnCount, this.Owner.DisplayMode);
this.Owner.RaiseMoveToDateCommand(dateToNavigate);
this.CurrentDate = dateToNavigate;
}
handled = true;
}
return(handled);
}
internal bool MoveCurrentToNext(bool isControlModifierDown)
{
bool handled = true;
if (isControlModifierDown)
{
if (this.CurrentDate == DateTime.MinValue)
{
DateTime dateToNavigate = CalendarMathHelper.IncrementByView(this.Owner.DisplayDate, 1, this.Owner.DisplayMode);
this.Owner.RaiseMoveToDateCommand(dateToNavigate);
}
else
{
DateTime dateToNavigate = CalendarMathHelper.IncrementByView(this.CurrentDate, 1, this.Owner.DisplayMode);
this.Owner.RaiseMoveToDateCommand(dateToNavigate);
this.CurrentDate = dateToNavigate;
}
}
else
{
if (this.CurrentDate == DateTime.MinValue)
{
this.CurrentDate = CalendarMathHelper.GetFirstDateForCurrentDisplayUnit(this.Owner.DisplayDate, this.Owner.DisplayMode);
}
else
{
DateTime dateToNavigate = CalendarMathHelper.IncrementByCell(this.CurrentDate, 1, this.Owner.DisplayMode);
this.Owner.RaiseMoveToDateCommand(dateToNavigate);
this.CurrentDate = dateToNavigate;
}
}
return(handled);
}
