Defining Attribute Rules

The Attribute Rule form is used to define attribute rules.

Define Attribute Rules

1. Double-click on a rule from within the Template Member Parameters form.

   The Attribute Rule window opens:

   

   Note: Navigation is suspended while this form is displayed. Each rule is an expression whose result must be of the correct type for the Attribute.

2. Fill out the form by entering the required details as follows:

   Clear Rule	Delete Rule
   Text Expression	Validate the syntax of the expression
   Expression	Input field for the expression
   Table	Reference section showing properties available for use in an expression

   The top part of this form is used to define the expression and test the expression syntax. Note that testing the expression here does not guarantee that the expression will work as expected in a Design model context. Correct behavior of an expression must be verified by checking Design instances of this Template.

   The lower part of this form is a reference section provided to assist the user when entering an expression. The properties shown in the table of properties is controlled by the Show Property Type buttons.

   If Template is selected, the properties shown are the properties of the Template, which can be accessed by an expression like ( LDPR ODIA OF TMPL ).

   If Element is selected, and the current element is a catalogue item, the list will contain local properties of that item, typically accessed using an expression like ( RPROP WIDTH )

   If Element Owner is selected, then local properties of the element that owns the current element will be displayed. If the current element is directly owned by the Template, then the Template property list is shown.