Before the arrival of 4D v19, form objects such as pop-up/drop-down lists and tab controls required lists or arrays as data sources. In particular, if the values of a form object needed to be initialized programmatically, arrays were needed. Now in v19, the values of the aforementioned form objects can be defined using collections within objects. Collections offer many benefits over arrays, especially when used in form objects. This technical note will go over these benefits and how to utilize collections in three types of form objects: combo boxes, pop-up/drop-down lists, and tab controls.

Download Complete Tech Note: Tech Note Document