title: jqgrid: how to set toolbar options based on column value in row selected
body: <p>I have a column field type having values (editable, readonly). all the rows will have one of these values populated.</p>
  
  <p>I want to enable/disable toolbaroption edit only if column value is editable for selected row.</p>
  
  <p>how can i achieve that in jqgrid.</p>