Tuesday, February 05, 2008

Visual DataFlex DDO Stored Procedure Delegation

As advertised: for Visual DataFlex programmers.

This is a snippet showing the Visual DataFlex cascade of messages that is called in each one of the data dictionary objects in a connected tree of data table dictionary objects in a form/view.

Creating: [a method to put code for new records only]
Backout: [a method to put code where the record on disk is in memory before ui]
Update: [a method to put code for all saves both new and existing]
Validate_Save: [a method to put complex validation or validation to be done after update]
Save_Main_File: [a method where the parent values drop down into the child and the record is saved to disk]

[ double click image to expand]

Peter A Donovan

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