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Connect to RSS Feeds from PowerBuilder

This article demonstrates how to use the CData ODBC Driver for RSS to connect to RSS feeds and execute queries in PowerBuilder.

The CData ODBC Driver for RSS can be used from any platform or development technology that supports ODBC, including PowerBuilder. This article shows how to connect to RSS feeds and execute queries from the Database Painter and controls such as the DataWindow.

Connect to RSS as an ODBC Data Source

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

You can connect to RSS and Atom feeds, as well as feeds with custom extensions. To connect to a feed, set the URL property. You can also access secure feeds. A variety of authentication mechanisms are supported. See the help documentation for details.

Create a Profile for the ODBC Driver for RSS

Follow the steps below to use the Database Painter tool to create a database profile based on an ODBC DSN (data source name) for RSS. In the Database Painter, you can use wizards and the UI to work with RSS feeds.

  1. In PowerBuilder, click Tools -> Database Painter.
  2. In the Objects window in the Database Painter, right-click the ODBC node and click New Profile.
  3. On the Connection tab, enter a name for the profile and select the RSS DSN in the Data Source menu.
  4. To view and modify a table, right-click a table and then click Edit Data -> Grid.

Using RSS Feeds with PowerBuilder Controls

You can use standard PowerBuilder objects to connect to ODBC data sources and execute queries. The following example shows how to retrieve RSS feeds into a DataWindow. You can add the following code to the open method:

SQLCA.DBMS = "ODBC" SQLCA.DBParm = "ConnectString='DSN=CData RSS Source'" CONNECT USING SQLCA; dw_latest news.SetTransObject(SQLCA); dw_latest news.Retrieve();