Using the Preview view of a DataWindow object
Contents
You use the Preview view of a DataWindow object to view it as it
will appear with data and test the processing that takes place in
it.
To display the Preview view of a DataWindow object open in the
DataWindow painter:
-
If the Preview view is not already displayed, select View >
Preview from the menu bar.In the Preview view, the bars that indicate the bands do not
display, and, if you selected Retrieve on Preview in the DataWindow
wizard, PowerBuilder retrieves all the rows from the database. You
are prompted to supply arguments if you defined retrieval
arguments.In external DataWindow objects
If the DataWindow object uses the External data source, no
data is retrieved. You can import data, as described in Importing data
into a DataWindow object.In DataWindow objects that have stored data
If the DataWindow object has stored data in it, no data is
retrieved from the database.As the rows are being retrieved, the Retrieve button in the
toolbarPainterBar changes to a Cancel button. You can click the
Cancel button to stop the retrieval. -
Test your DataWindow object.
For example, modify some data, update the database,
re-retrieve rows, and so on, as described below.