Declare Expression form
Completing the Pages & Classes tab

Field

Description

Optional. Enter any page referenced by name on the Expressions tab. For a locatable page, enter the keyword locate followed by a page name.

Optionally, add a row with the keyword Top as the page name, to identify a top-level page. The Top keyword allows you to use the syntax Top.propertyref to identify properties, on other tabs of this rule form.

Declare Expression rules can apply to embedded pages that appear within top-level pages with various names. In such cases, you can use the keywords Top or Parent in the page name here. If the Page Context key part of this rule is not blank, this tab automatically includes a definition of the Top and Parent keywords.

Optional. To use an activity to locate a locatable page, enter a Boolean expression here. If this evaluates to true, the system uses the activity identified in the Locate Page Activity field to find and temporarily add the page to your clipboard.

Typically, enter an expression that evaluates to false when the page corresponding to the entry in the Page Name field is already present on the clipboard and contains the needed properties. For guided entry of any expression, click the magnifying glass icon () to start the Expression Builder.

Optional. Enter the second key part — Activity Name — of an activity type Locate that can find the page identified in this row.

If the activity has parameters, click the  Get Locate Activity Params   button to enter values for the parameters.

The system uses the Applies To key part of this Declare Expression rule as the first key part of the activity.

If the Page Context key part is not blank, this field identifies the class of the page or pages that are identified in the Page Context field.