title: Sorting in dojo datagrid
body: <p>I am using  datagrid + jsonreststore (which is fetching data from a remote
  server), now I am planning to support local sorting</p>
  
  <p>I searched a lot and found we can enable local sorting ( no http rest sent 
  )  by setting</p>
  
  <p>queryOptions: {cache: true},</p>
  
  <p>in the datagrid init</p>
  
  <p>but seems it does not work always...</p>