Reusing a DataWindow object

PowerBuilder only This technique uses PowerScript methods, which are not available
in other DataWindow environments.

You can reuse a DataWindow object by retrieving its syntax
from the library it is stored in, then using the syntax to create
a DataWindow object dynamically in a DataWindow control.

Here is a typical way to accomplish this in an application.
Use:

• The LibraryDirectory function to obtain
  a list of DataWindow objects and other library entries in the current
  library
• A DropDownListBox to list the DataWindow objects
  in the library and then allow the user to select a DataWindow from
  the list
• The LibraryExport function to export the selected
  DataWindow object syntax into a string variable
• The Create method to use the DataWindow syntax to
  create the DataWindow object in the specified DataWindow control
• The Describe method to get the current DataWindow
  object syntax—for example:
  PowerBuilder

  string dwSyntax

  1	string dwSyntax

  PowerBuilder

  dwSyntax = dw_1.Describe("datawindow.syntax")

  1	dwSyntax = dw_1.Describe("datawindow.syntax")

• The Modify method to allow the user to modify the
  DataWindow object
• The LibraryImport function to save the user-modified
  DataWindow object in a library

For information about the PowerScript functions,
see the PowerScript Reference
. For information
about the DataWindow methods Create, Describe, and Modify, see the DataWindow
Reference
.

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