Json datas seems correcty parsed : the addJSONData function is called and the line 1314  $("#"+$.jgrid.jqID(ts.p.id)+" tbody:first").append(rowData.join('')); is executed. The selector $("#"+$.jgrid.jqID(ts.p.id)+" tbody:first") holds the right dom element for the grid. At this time "undefined" is already shown.

This command executed, the DOM is correcty updated : I can see my datas in children of grid's tbody element…. but rows remains invisible, only "undefined" is shown.

[SOLVED] jqGrid 4.0 requires local file inclusion. I've added the locale script before loading jqGrid... now everythings is fine.

I've noticed that Firefox4 works only with the new version of jqGrid. So, I've installed 4.0.   Before upgrade, I was using 3.7.2 and everything was fine.

After upgrade, the grid is shown with the right columns names with the message, in the center of the grid, "undefined"… I can't figure what's happening… The json datas used to build the grid are the same, I have keep the same configuration parameters.

I've read docs and I haven't noticed any backward compatibilty info.

Does anyone have an idea about what's happening

Thanks for your help !