Release 10.1A: OpenEdge Development:
Progress Dynamics Getting Started

Setting links for the new page

The links that define how data and event messages are passed between objects are normally defined in the template. When you replace the template objects with real application objects, those links are established between the real objects in your application window.

But in this case, you added a template for another page to the basic one-page folder template. As you saw, you had to identify the key values to be passed in to the Order SDO on Page 2. You also must define a link between your container window and that SDO, so the framework can route the data.

To set the links:

Choose the Links Maintenance button in the Container Builder toolbar. The Links Maintenance window displays all the existing links for your window, as shown:



Note: These are the links for both template containers.
Choose New.
Select THIS-OBJECT as the Source, Data as the Link, and OrderSDO as the Target. Then save the new link.
Note: If you do not see the appropriate choice in the lists, choose the Filter from source button under the list.
Choose New.
Select THIS-OBJECT as the Source, Data as the Link, and CustomerViewer as the Target. Then save the new link.
Verify that all of the links in the following table are listed:

Source	Link	Target	Description
afspfoldrww	Page	THIS-OBJECT	Enables folder to communicate to container for page handling.
CustomerViewer	Update	THIS-OBJECT	Saves customer changes back to customer SDO.
OrderlineSDO	Data	OrderlineBrowse	Passes orderline data values to orderline browse.
OrderSDO	Data	OrderBrowse	Passes order data values to order browse.
OrderSDO	Data	OrderlineSDO	Passes order data (foreign field key) to order line SDO.
StandardToolbar	ContainerToolbar	THIS-OBJECT	Enables toolbar to execute container functions.
StandardToolbar	Navigation	THIS-OBJECT	Notifies SDO to navigate through data records.
StandardToolbar	TableIO	CustomerViewer	Enables toolbar to request customer viewer to allow changes.
THIS-OBJECT	Data	OrderSDO	Passes customer data (foreign field key) to order SDO.
THIS-OBJECT	Data	CustomerViewer	Passes customer data to customer viewer.

THIS-OBJECT represents the container window for the tab folder. The Customer key values pass through the container from the Customer Browse Window that calls it. When constructing the window, you treat the container as if it were the source of the data values.

Exit the Links Maintenance window.
Choose Save in the Container Builder toolbar, then exit the Container Builder.