System.ArgumentOutOfRangeException: Year must be between 1 and 9999. (Parameter 'year')
   at System.DateTime.DaysInMonth(Int32 year, Int32 month)
   at Telerik.Windows.Controls.MilitaryDateParser.CheckAndSetValidDate(Int32 year, Int32 month, Int32 date, DateTime& fullDate, DateTime current)
   at Telerik.Windows.Controls.MilitaryDateParser.TryParseSingleDigitDatePart(DateTime& result, DateTime current, String datePart, DayMonthYearIndecesInfo dateIndeces, CultureInfo culture)
   at Telerik.Windows.Controls.MilitaryDateParser.TryParse(String value, DateTime& result, DateTime current, CultureInfo culture)
   at Telerik.Windows.Controls.RadDateTimePicker.ParseDateTime(String text, IDateTimeParser parser, Nullable`1& dateTime)
   at Telerik.Windows.Controls.RadDateTimePicker.OnDateTimeTextChanged()
   at Telerik.Windows.Controls.RadDateTimePicker.OnDateTimeTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadDateTimePicker.set_DateTimeText(String value)
   at Telerik.Windows.Controls.RadDateTimePicker.UpdateValueFromCurrentText()
   at Telerik.Windows.Controls.RadDateTimePicker.ProcessKey(KeyEventArgs e)
   at Telerik.Windows.Controls.RadDateTimePicker.OnKeyDown(KeyEventArgs e)