Create a new
ancestor sheet window
Where you are
Add a library to the
search path
> Create a new ancestor
sheet window
Add user events and
event scripts
Add scripts to retrieve
data for the DataWindow controls
Adjust a runtime
setting for sheet window size
Now you create a window that inherits from the basesheet window you
generated with the Template Application wizard and add DataWindow controls
to it. In the Source editor, you change the inheritance of the generated
sheet windows (w_customers and w_products) to use the new window.
The DataWindow controls you add to the new ancestor window inherit
their definitions from a user object that was created for the tutorial
application. The user object is provided in the PBL file that you just
added to the target library list. The user object is a customized
DataWindow control that includes scripts to perform standard database
error checking.
Why use a user object
You can build a user object in PowerBuilder to perform processing
that you use frequently in applications. Once you have defined a user
object, you can reuse it as many times as you need without any
additional work.
In this exercise you: