The 2nd line doesn't error out when false, but when I set this to true, I get the error below. The screenshot shows other failed attemps.
$gridMain = $("#gridMain").pqGrid(obj);
$gridMain.pqGrid("Group").option({ on: true });
Uncaught TypeError: Cannot set properties of undefined (setting '_renderG')
at pqgrid.min.js:55:23971
at n.cGroup.refreshColumns (pqgrid.min.js:55:26651)
at n.cGroup.setOption (pqgrid.min.js:55:27277)
at n.cGroup.option (pqgrid.min.js:55:23032)
at n.cGroup.option (pqgrid.min.js:75:31142)
at BuildRPMGrid (ResourceEdit.aspx:311:43)
at Object.success (ResourceEdit.aspx:227:25)
at i (jquery-2.2.4.min.js:2:27151)
at Object.fireWith [as resolveWith] (jquery-2.2.4.min.js:2:27914)
at z (jquery-2.2.4.min.js:4:12059)