Livecycle

Getting the current or previous value of a drop-down list

This example demonstrates how to obtain the current value of a drop-down list as well as the different ways to access the previous value of a drop-down list on a form. In addition to the actual scripts that set the current and previous values, it is important to note that the scripts are located on the change event for the drop-down list.

In the following example, when a form filler selects a value from the drop-down list, the selected value appears in the Current Value field. Then, when the form filler selects another value from the drop-down list, the new value appears in the Current Value List and the previous value appears in the Previous Value 1 field.

Note:

Each of the methods for obtaining the previous value of a drop-down list uses a different script. The Previous Value 1 text field is populated by a direct reference to the rawValue property of the drop-down list, whereas the Previous Value 2 text field is populated using the prevText property. For consistent results, it is recommended that you access the previous value by using the prevText property.

To see this scripting example and others, visit the LiveCycle ES Developer Center at www.adobe.com/devnet/livecycle.

Scripting for populating the Current Value text field

Populate the value of the Current Value text field by using the newText property:

CurrentValue.rawValue = xfa.event.newText;

Scripting for populating the Previous Value 1 text field

Populate the value of the Previous Value 1 text field by referencing the rawValue of the drop-down list:

PreviousValue1.rawValue = DropDownList.rawValue;

Scripting for populating the Previous Value 2 text field

Populate the value of the Previous Value 2 text field by using the prevText property:

PreviousValue2.rawValue = xfa.event.prevText;

Getting the current or previous value of a drop-down list