For example a typical Country/City scenario would include 2 lists.
- Countries (ID, Title)
- Cities (ID, Title, Country) where the Country field is a lookup for the Country List.
After configuration, the form automatically identifies changes in the constraint fields and reloads the depedent list using the criteria provided.
For example, selecting France as country loads only the relevant cities in the CityForCascade combobox:
In our second example, we select USA as country and observe how CityForCascade loads the relevant cities once more:
Additional criteria can be applied to the list query by using the "Lookup Criteria" property. Instructions on how to add criteria can be found using the following links: