Hi I have a problem igGird update row cells.

Have two question

First of , I want to update cells on grid but displayed cell bad , Grid must be 540 px  I can not increase grid width.

second problem is , 

I wantto change column hidding dynamicly on button click 

Im using    $("#gridKosul").live("iggriddatarendered", function(event, args)  event 
               $("#gridKosul > colgroup > col:eq(0)").css("width", "0px");  

but this is the problem on displayed 

How can I hidden column dynamicly and fixed updating row cells displayed 

Thanks for helps