This is work done in Drupal V6. Drupal is an Open-Source Content Management System. More information is available at http://drupal.org.
I needed to create a View for a Custom Content Type that took an optional date (year) as an argument. I followed the normal process for defining the various fields of a View. The argument was defined with my custom content value (field_event_season). The definition included creating a 'Summary, sorted ascending' action if no value was present. Since I wanted to display the entire list, this is the appropriate setting.
