Progress
Programming
Handbook
Character Mode
If you use a selection list in a character interface, you need to be aware of several considerations:
- You can select or deselect an item in a selection list by pressing the SPACE BAR. This causes the VALUE–CHANGED event.
- In a single selection list, the ENTER key performs the default action. In a multiple selection list, the ENTER key first toggles the selection of the current item (causing a VALUE–CHANGED event) and then performs the default action. Therefore, to perform the default action on a multiple selection list, select all but one value with the SPACE BAR, position to the remaining value, and then press ENTER.
- If drag is enabled for a selection list, then each time you move to a new item within the list, the new item is selected. This means that the VALUE–CHANGED event might occur many times as you navigate through the list. If drag is disabled, then an item is selected only when you press the SPACE BAR or ENTER–KEY.
For a single selection list, drag is enabled by default in the character interface. You can optionally specify NO–DRAG or change the DRAG–ENABLED attribute value. A multiple selection list in the character interface always behaves as though drag is disabled.
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