Use the Preview view to see a DataWindow object as it will appear with data and test the processing that takes place in it.
Note: When Retrieve On Preview is enabled, the data appears in the Preview view when it is first opened. If the view is already open, however, you must click Retrieve to see the data.
To open the Preview view, select View > DataWindow Painter Views > Preview. (If the menu option is not available, make sure the DataWindowpainter is active.)
In the Preview view, the bars that indicate the bands do not appear. If you defined retrieval arguments, you are prompted to supply arguments.
Test your DataWindow object.
For example, modify some data, update the database, re-retrieve rows, and so on.