public List <DateTime> GetPossibleDates()
{
Dictionary <string, DateTime> dates = new Dictionary <string, DateTime>();
BackEndData.GetAllCyclingData().ForEach(x => dates.TryAdd(x.col2.ToString("MM-yyyy"), x.col2));
List <DateTime> sortedList = dates.Values.ToList();
sortedList.Sort();
sortedList.Reverse();
return(sortedList);
}
private void radioFietsTraining_Checked(object sender, RoutedEventArgs e)
{
dgOverview.ItemsSource = BackEndData.GetAllCyclingData();
SortDataGrid(dgOverview, 2);
}