public void OnPickDateWithLimitsClick()
{
var now = DateTime.Now;
var minDate = new DateTime(2015, 1, 1);
var maxDate = new DateTime(2020, 12, 31);
AGDateTimePicker.ShowDatePickerWithLimits(now.Year, now.Month, now.Day, OnDatePicked, OnDatePickCancel, minDate, maxDate);
}