Events

Every calculation or script you attach to a form object is associated with a specific event. An event is defined as a particular occurrence or action that can change the state of a form and, when the change of state occurs, automatically invoke a calculation or script associated with the event. Events occur at various times, from the beginning of the form rendering process when merging data with a form design, all the way through to a form filler interacting with objects on a form in a client application. By applying calculations and scripts to specific events, you can control every aspect of how you present form objects, as well as form data, and how the objects and data respond to form filler interaction.

A single change of state or form filler action may trigger multiple events. For example, tabbing from the current field to the next field triggers both the exit event for the current field and the enter event for the next field. If the current and next fields are in different subforms, a total of four events are triggered; namely, exit events for the current field and subform, and enter events for the next field and subform. In general, each of the different categories of form events follow a predictable ordering.

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