Assume you have made all other things correctly, I think what you need to do is: instead of Primary SDO link: THIS-OBJECT (source)--> TitleListSDO (target), use Data link: THIS-OBJECT (source)--> TitleListSDO (target).

The following is my working example.
Main window (Customer Window):
page0: afspfoldrw.w (SmartFolder)
page1: customerfullo (DynSdo), customerfullb (DynBrowse), standardtoolbar
links:   Source                  Link Name    Target
          customerfullo         Data              customerfullb
          StandardToolbar   Navigation     customerfullo
          afspfoldrw.w         Page              THIS-OBJECT 
          customerfullo         Data              THIS-OBJECT (I find this link is not necessarily to be defined, because even without defining it, my application still works well. So I think, by default, the program knows how to figure this out in this kind of case.)
In Dynamic Property Sheet of customerfullb, specify the attribute "FolderWindowToLaunch" to be the name of the Secondary (maintenance) window: orderwin.

Secondary (maintenance) window (orderwin):
page0:
Objects:
orderfullo (DynSDO), orderfullb (DynBrowse), orderviewv (DynViewv), StandardToolbar
Links:
Source                           Link Name                                        Target
orderfullo                       Data                                                  orderfullb
orderfullo                       Data                                                    orderviewv
THIS-OBJECT            Data                                                  orderfullo
StandardToolbar           Navigation                                          orderfullo
StandardToolbar           TableIO                                              orderviewv
orderviewv                    Update                                               orderfullo

For orderfullo, specify the foreign key: Order.CustNum,CustNum

After CustWin is launched, double-click on a customer record in the browse to select and launch the order maintenance window for this customer, all orders displayed in the launched maintenance window is for this customer. Everything works fine as expected, like read, update, create. And Navigating the CustWin has good sync with orderwin because order records there get updated for the selected customer.

Hope it helps.

Note: I use Progress 91D01 + Progress Dynamics 2.0A

Regards,
Yongjian
 
 

James Burts wrote:

I am trying to create an interface where the Primary window launches a
secondary window, and the SDO of the secondary window is linked to the SDO
on the primary.

I've read everything I can find on it, and have things set up as follows:

Main Window:
   Data link:        TitleSDO (source) --> THIS-OBJECT (target)
Secondary Window:
   Primary SDO link: THIS-OBJECT (source)--> TitleListSDO (target)
   Foreign Fields:   Title.TitleObj,TitleObj

The SDO on the secondary window is just behaving like it is completely
independant.  It doesn't seem to pick up the links I want at all.

I know I must be missing something simple, but I can't figure it out for my
life!

--James--

James Burts                             james@klas.com
Keystone Systems, Inc.                  919-782-1143
Manager of Software Development         Raleigh, NC

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--
Yongjian Gu
email: ygu@progress.com
Tel: (781) 280-4694 (w)

Progress Software Corporation
14 Oak Park, Bedford, MA, USA 01730
www.progress.com