title: how to disable checkbox in easyui-datagrid?
body: <p>I am using a datagrid control for loading records. In that datagrid I have enabled the checkbox column using <code>checkbox:true</code> property. How can I disable a particular row's checkboxes in this datagrid?</p>
  
  <pre><code>$('#dg').datagrid({    
      url:'datagrid_data.json',
      columns:[[
          {field:'id',checkbox:true},
          {field:'name',title:'Name',width:100},
          {field:'price',title:'Price',width:100,align:'right'}
      ]]
  });
  </code></pre>
  
  <p>Is there any datagrid property to disable checkbox?</p>