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In the SFDateRangePicker widget, a maximum date range span that is allowed can be indicated by the programmer so that the users will not be able to select a range span longer than the allowed duration.
For example when the attribute is set to 10 days in the DateRangePickerSelectionMode.range or DateRangePickerSelectionMode.extendableRange selection mode, the widget will allow the user to select a maximum range of 10 days. Since this feature does not limit the user around which dates the range is limited, the user will be able to select such a range span of less than 10 days anywhere in the calendar. Therefore this feature will add a different type of restriction than the minDate/maxDate attributes.