How to Create Grid with multigrouping and summary using Extjs 4.1.1?

[Santra]

Hi All,

How to Create Grid with multi columns Grouping + Summary + Expander Rows in ExtJS 4.1.1 version?
Has anyone tried to do this??
Let me know if this is possible in 4.1 version.

Regards,
Santra.

[Gary Schlosberg]

Not sure if it will all play nicely together. Here's an example with grouping and summary (though no expander):
http://docs.sencha.com/extjs/4.1.3/#...hdrs-grid.html