Description
This method allows you to sort the data set that is in the datagrid. If
you are using a datasource object such as DB_DataObject, it will attempt to
run the relevent sort method. Otherwise it will sort the array using PHP's
multisort function.
Note
For the DataSource drivers Array, CSV, RSS and XML
sortRecordSet() needs to be called
after bind().
For all other DataSource drivers like DataObject, DB, DBQuery, DBTable
sortRecordSet() needs to be called after
before bind().