windowsforms-912-controls-and-libraries-data-grid-design-time-features-level-designer.md
At design time, to manage Views that present information at the top and detail hierarchy levels, use the Level Designer , which resides at the bottom right corner of the Data Grid.
The Level Designer allows you to:
When required, you can hide the Level Designer by clicking the Data Grid’s smart tag and unchecking the Show level designer check box.
See Also