Summary
The displayed multi-row gridview can be setup as a double-click mouse selection view.
Controlling Properties
Field.FixedAction, FieldMap.MouseEnterClicks and FieldMap.CursorDrillDown
Details
A Double-Click mouse selection is enabled when the MouseEnterClicks property is set to Double Click Enters. For this property to be visible, either an Action Column needs to have the FixedAction property non-blank, or the FieldMap.CursorDrillDown property must be true.
See the Action Column Support topic for more information on your selection options with multirow fieldmaps that have an Action Column defined.