private void ManageCheckBoxPropertyChanged(object sender, PropertyChangedEventArgs e) { Filter filter = (Filter)sender; if (filter.IsChecked == false) { return; } GrouppedProperties.Clear(); List <GrouppedProperty> propertiesToAdd = _resultSet.GetFilteredGrouppedCollection(filter.ExifCode); GrouppedProperties.AddRange(propertiesToAdd); RedeisgnGraphs(); }