Retrieves the Template Rule parameters.

An ANSI string that contains Template Rule parameters.

The MVDXML standard provides parameters string that may contain definition syntax in the form of "parameter=value" (MVDXML 1.0) or in the new grammar syntax. New grammar syntax assumes that parameters string contains expressions where each boolean term must be completed with a parameter that refers to an attribute rule or entity rule within a referenced Concept Template. Expressions can be combined with AND, OR and XOR logical operators.