I just finished tutorial 14, Configuring a Business Object relationship, and when i got to the end it said "Designing a child form that will show use of a business object relationship is beyond the scope of this tutorial". Well I've looked through the help file and the forums and can't find a parent-child tutorial.



So my question is how do i create a form with two grids on it to demonstrate how this business object relationship works.

If you could instruct me on samples of both that would be great!  Both a child form that pops up and a parent child on the same form (two data grids).

Well, Mike,



The ChildFormDialog is used when you want to show a child form:



1) Drop one on a form

2) Set it's ChildForm property to the type of child form that it should show

3) Set the BusinessObjectTranslations property through the editor and tell it which business objects on the main form should translate into business objects on the child form.

4) Within code, call ChildFormDialog.ShowDialog() to show the child form. The business objects configured in the BusinessObjectTranslations will be translated so that the instances on the main form are the same instances that are on the child form.



When you want to use 2 grids on the same form, you simply place both grids on the form, set the DataSource on one as the parent business object and the DataSource on the other as the child business object. Within the Navigated event of the parent business object, you can repopulate the child business object so that is shows the child records of the selected business object within the parent grid. Or you can set the ChildAutoFilterOption (AutoChildFilterOption?) on the parent business object to MatchCurrentRow and the parent business object will set the filter on the child business object so that only child records of the currently selected row within the parent grid are visible within the child grid.