Module wdh - Low-Level-Editing of Widgets

The module wdh (widget handler) provides the standard functions for the low-level-editing of on widgets. You can call some of these functions directly as userexit. The following operations can be executed:

All provided functions of the module wdh can be handled in an uncomplicated way. The checks required for securing the consistency of the data model of your application are integrated in the standard userexits. Errors at passing parameters are rejected by DataView with a corresponding error message


Important functions

dal_wdh_ext_lis
standard userexit for extending a list widget by the internal system fields of DataView

dal_wdh_cnt_lis, dal_wdh_upd_lis, dal_wdh_upd_sng
standard userexits for counting or queries in a widget based on the search terms entered in the field query buffers. You can differentiate between multi-fetch and single-fetch procedures

dal_wdh_del_lis
standard function for temporarily deleting records from a widget

dal_wdh_get_sel, dal_wdh_ret_sig
standard functions for reading selected records or the significant field entries in the widget.