If you see jqGrid demo :
http://www.trirand.com/blog/jqgrid/jqgrid.html
Section : Advanced --> Multiselect
You\'ll see that the checked checkbox is not p
No direct way to retain the check box value through jqgrid, instead we can create a new column to retain the check box value. please see the demo in the below link http://jsfiddle.net/vasece/cLV4M/