Trigger variables

A trigger variable stores data obtained in triggers. This data, once stored, can be used in any other trigger, either as a passback value, or as part of the criteria that determines whether the trigger will fire.

These variables are stored in the DPA client memory, and are available for use on any DPA Trigger.

DPA provides predefined variables or you can create them yourself. Only after you have created the variables can you manipulate their use and use them inside a trigger definition.

Trigger variables can come from a variety of sources such as captured pages and system information. You can only assign values to variables which are not read only. The read only setting is used for system variables such as a Desktop Login, or the system time. Any variable which is listed as read only cannot receive a default value and cannot be changed by users.

Trigger variable operations extend the manipulation capability of a variable. There are a number of operations that you can perform on variables. The specific operations that you can perform on the variable are dependent on the variable type. The trigger variable operation is part of the trigger definition. Thus, any variable or operation you create requires a trigger to execute the operation or action. Variables are only assigned their values when the trigger fires. Therefore, if there is no condition present where the trigger can fire at run time, then the variable will not have a value and the operation will not be performed on it.