State Persistence
During each UI interaction, the row and column headers are maintained the same expand and collapse state.
PivotGrid with collapsed “Canada”.
![Caption to image](/js/PivotGrid/Getting-Started_images/expandall.png)
The member “Canada”, maintained its collapsed state even the field “Country” moved from row axis to column axis.
![Caption to image](/js/PivotGrid/Getting-Started_images/expandall_img1.png)