Set Logical Parent

Now and then, it is desirable to display values in fields on a window even though the values are not stored in the LU connected to the window. An example: in the LU for orders, the customer ID is stored. However, on a window displaying orders not only the customer ID, but also the customer name should be displayed. This would not be stored in the same LU, but should be fetched from the Customer LU. Each time the customer ID on the order window is changed, the displayed customer name must be updated. This is automated by making the customer ID field the logical parent of the customer name field.

Set Logical Parent

To make one field update depending on another field:

  1. Select the field or column in the design view.
  2. In the Properties window, locate the F1 Data Source group.
  3. Locate the property Logical Parent.
  4. In the list box click to populate the list.
  5. Select the field or column identifier to use as the logical parent for this field or column.