The Service Data Table control does allow for a selected able row option, and provides a method for getSelectedRow(). When you downloaded the SPARK UI Toolkit, you should have imported the SPARK Showcase with the file. Please see the following screenshots and accompanying steps.
1. Open Service Data Table Showcase under Heritage Human Services.
2. Select a Service Data Table – such as the Drinks table.
3. Set the Selection mode to Single under Behaviors
4. Define a method to use for the On Row Selected by User event.