Standard Modules

The modules of the standard userexit interface form the standard functionality of the DataView kernel. The usage of the standard userexits - well applied - allows you to realize big parts of your application-specific functionality.

Note! Even if direct calls of the standard userexits from the application-specific objects of the user interface (events, menus, widgets, masks) are not sufficient, you should use these functions in the form of sub-calls for the efficient and secure creation of your application as often as possible.

When installing the standard userexits take care that they are assigned to the correct dialog objects. Functions referring to selected records in a list widget, as for instance the editing of a record, must always be called from the Select menu of the widget. Functions referring to all records in the list widget, as for instance printing the complete content of the widget, must be called from the NoSelect menu of the widget. In form widgets this difference can be neglected, for they are assigned a function menu, only.

The following standard modules are available: