private void c1DataFilter1_FilterAutoGenerating(object sender, C1.DataFilter.FilterAutoGeneratingEventArgs e)
{
  switch (e.Property.Name)
  {
    //Set the checklist items for Brand filter
    case "Brand":
    brandFilter = (C1.Win.DataFilter.ChecklistFilter)e.Filter;
    brandFilter.ItemsSource = c1NWindDataSet.Cars;
    brandFilter.ValueMemberPath = "Brand";

    //Define the summary for the Checklist filter defined for Brand Field.
    //This summary displays the count of cars available for each brand.
    brandFilter.FilterSummary.AggregateType = AggregateType.Count;
    brandFilter.FilterSummary.Label = "Count";
    brandFilter.FilterSummary.PropertyName = "Brand";
    //Select all the filter items
    brandFilter.SelectAll();
    break;

    //Set the checklist items for Category filter
    case "Category":
    var categoryFilter = (C1.Win.DataFilter.ChecklistFilter)e.Filter;
    categoryFilter.ItemsSource = c1NWindDataSet.Cars;
    categoryFilter.ValueMemberPath = "Category";
    //Define the summary for the Checklist filter defined for Category Field.
    //This summary displays the maximum price of cars for the specific category.
    categoryFilter.FilterSummary.AggregateType = AggregateType.Max;
    categoryFilter.FilterSummary.Label = "Max";
    categoryFilter.FilterSummary.PropertyName = "Price";

    //Select all the filter items
    categoryFilter.SelectAll();
    break;

    //Set the minimum/maximum value for the Price filter
    case "Price":
    var priceFilter = (C1.Win.DataFilter.RangeFilter)e.Filter;
    priceFilter.Maximum = c1NWindDataSet.Cars.AsEnumerable().Max(x => x.Field<double>("Price"));
    priceFilter.Minimum = c1NWindDataSet.Cars.AsEnumerable().Min(x => x.Field<double>("Price"));
    priceFilter.Increment = 1000;
    priceFilter.Digits = 0;
    break;
    //Cancels the creation of all other filters
    default:
    e.Cancel = true;
    break;
   }
}