How to set radio button column' ID

Hi I am developing gird with my style JSON
so I developped myGrid.parse({ data: src }, “js”); except totalpage.
Although total page is ommited, it is working.
At set Culomn id configureation , i did like below , but what columnId has to be input incase of radio column? ###### has to be what?
myGrid.setColumnIds("######,id,sortOrder,menuName");

                    myGrid.setColumnIds(",id,sortOrder,menuName");
		myGrid.setInitWidths("50,150,150,200");
		myGrid.setColAlign("center,left,left,left,left");
		myGrid.setColTypes("ra,ro,ro,ro,ro");
		myGrid.setColSorting("str,str,str,str");

src is like below
{“id”:“0”,“upperMenuId”:null,“menuId”:null,“menuName”:“TOP”,“menuDesc”:null,“menuLevel”:“0”,“sortOrder”:“1”,“useYn”:null,“regId”:null,“regDate”:null,“updId”:null,“updDate”:null,“menuUrl”:null},
{“id”:“M04_05”,“upperMenuId”:null,“menuId”:null,“menuName”:“Cancel ULD hold Positions”,“menuDesc”:null,“menuLevel”:“2”,“sortOrder”:“5”,“useYn”:null,“regId”:null,“regDate”:null,“updId”:null,“updDate”:null,“menuUrl”:null},{“id”:“M04_10”,“upperMenuId”:null,“menuId”:null,“menuName”:“Reprint ULD Cards”,“menuDesc”:null,“menuLevel”:“2”,“sortOrder”:“10”,“useYn”:null,“regId”:null,“regDate”:null,“updId”:null,“updDate”:null,“menuUrl”:null}]

but what columnId has to be input incase of radio column? ###### has to be what?
instead of “######” you need to set the variable that is defines the value of your radiobutton in your json.
If this value should not come from your json file please, try to set any unique id for your column that is not in your json.