Hello,

The grid does not know which data act as ID.

Please set key:true for a field that should

If you don't want to add information about ids to the data which you add you can force sorting with a simple reloading of grid:

$("#myXXTable").trigger("reloadGrid");

or

$("#myXXTable").setGridParam({rowNum:16}).trigger("reloadGrid");
I hope that it will work.

Best regards

Oleg

If every element of your data from cumAgeArray would be have an additional property id

Sorry liny, but you write no time about any radio button sortBy. If you use some external elements for jqGrid sorting and place the data not one during creating the grid as you write it is absolutely another situation.

If you want reload the grid with new data you should probably place setGridParam inside of 'change' or 'click' event handler. Moreover refreshing of jqGrid indexes with $(“#myXXTable”)[0].refreshIndex(); could be also required after this data settings.

Regards
Oleg