• defined for the section, then the parameters display here, along with a field into which you can enter the value that you want to pass to each parameter.
• not defined for the section, then the No parameters to set message displays. To define parameters for the section, open the section and select the Parameters tab.

Alternatively, you can select the Pass current parameter page to pass the current parameter page to the section.

• Always : always visible
• Condition (expression) : the region is visible under the specified condition. In the field that displays, select a condition or click the Gear icon to open the Condition Builder. You can define a simple expression based on the comparison of a pair of constants, properties, or both, combined by Boolean operators, such as .Color="Red". You can combine the expression with a when condition rule or another expression using the && and || operators.
• Condition (when) : the region is visible under the specified condition. In the field that displays, select a when rule. Click the Open icon to create a new when condition or review an existing when condition.

Appears when you select Conditional Visibility and enter a simple expression in the field that displays.

Select the Run visibility condition on client checkbox to cause dynamic execution of the condition each time the value of a property stated in the condition changes. This cannot be used if the expression is combined with a when condition rule.

Conditions are automatically re-evaluated when the user updates a property value. By default, controls that allow typing, such as Text Input, are evaluated when the user leaves the field. To re-evaluate conditions as the user types, use the Apply Conditions action with a Keyboard event.

If you plan to localize the application, choose the text carefully and limit the length to no more than 64 characters. A field value rule with this text as the final key part is needed for each locale. See Internationalization and localization.

• Use current page context — uses the class ( Applies To key part) of the current section
• Use data page — in the field that displays, press the down arrow and select the data page. If the data page accepts parameters, then the parameters display here, along with a field into which you can enter the values that you want to pass to the parameters.
• Use clipboard page — specify the clipboard page in the field that displays. Press the down arrow and select to reference:
  • a property on the primary page: select Primary. Primary, followed by a dot, displays in the field. Press the down arrow to select the property name that you want to use as the page context for the section.
  • a parameter on the parameter page: select Param. Param, followed by a dot, displays in the field. Press the down arrow to select the parameters you want to specify as the page context for the section.
• Use page defined by property — specify the property that defines the page that you want to use.

As a best practice, use the Condition Builder to edit expressions, or to trigger a refresh based on a property change or the addition or deletion of a row or column in a repeating layout. The editor also enables you to specify a pre-activity or data transform.

See Condition builder.

If a user holds the privilege in the View Privilege field but does not hold the privilege identified in this field, the section appears in read-only format. In this case, default values for fields are not shown.

If you plan to localize the application, choose the text carefully and limit the length to no more than 64 characters. A field value rule with this text as the final key part is needed for each locale. See Internationalization and localization.

To enable users to take actions, such as submit, on a work item while other content is still being loaded, configure sections to use defer loaded asynchronous declare pages. See Pega Community How to configure non-blocking UI using Asynchronous Declare Pages (ADP).

Select to run an activity prior to loading the section. Press the down arrow in the Activity field and select the activity that you want to run. Click the Open icon to review or create the activity rule.

Select to run a data transform prior to refreshing the section. Press the down arrow in the field that displays and select the data transform.

Select to run an activity prior to refreshing the section. Press the down arrow in the field that displays and select the activity that you want to run.

If a user holds the privilege in the View Privilege field but does not hold the privilege identified in this field, the section appears in read-only format. In this case, default values for fields are not shown.

When you plan to localize the application using this rule, choose the text carefully and limit the length to no more than 64 characters. When practical, choose a caption already included in a language pack, to simplify later localization. A field value rule with this text as the final key part is needed for each locale.