Filter Groups Dialog

Used to define filter groups. A filter group lets you use existing filters to define new filter criteria.

Opens when you right-click on a filter name, then select Filter Group in the Level Manager dialog.



Setting Description
Edit > Insert Filter(s) Opens the Select Filters dialog, which lets you insert one or more filters into the Filter Groups list box.
Figure 1. Select Filters dialog


Filter Groups list box Lists the expressions that define the filter group. A filter group uses existing filters and set-based operators to define filter criteria.

Set-based operators include: | (or), & (and), or ? (minus).

For example, suppose that Filter C uses a filter group that includes Filters A and B. If the levels that match Filter A criteria are Levels 1, 2, and 3, and levels that match Filter B criteria are Levels 3, 4, and 5, then the levels for Filter C depend on the filter group expression entered:

  • ?Filter A? | ?Filter B? - Levels 1, 2, 3, 4, and 5 match the filter group criteria
  • ?Filter A?& ?Filter B? - Level 3 matches the filter group criteria
  • ?Filter A?? ?Filter B? - Levels 1 and 2 match the filter group criteria
OK Accepts the filter group expressions and closes the dialog.
Cancel Closes the dialog without accepting the filter group expressions.
Clear Clears the filter group expressions from the list box.