Dynamic Management of Combo List Boxes

Previously, in ‘Hydra4GL’ 3.0 - 4.2, Combo Boxes were populated statically using an ’Include’ statement as part of the form file. In ‘Hydra4GL’ 4.3, Combo widgets no longer carry this limitation. In other words, Combo Box entries are manageable with standard 4GL function calls. There is a whole range of built in functions to insert, delete, sort and search Combo Box list entries.

Optional Server Side Validation

The server side field validation can be turned off to allow the entry of values freely or it is possible to pick one from the list.

Combo Box Navigation

Keyboard cursor keys can navigate through the Combo list with a single keystroke, leading to the entry beginning with the key pressed. Combo Box navigation is flexible to support mouse selection, cursor key selection or by typing in the corresponding list item.