<Label height="10" width="100%" contents="Showing items in Category 'Rollfix Glue'"/>
<ListGrid
    top="20"
    ID="dsListGrid" 
    width="100%" 
    height="200"
    dataSource="supplyItem"
/>
<JS>dsListGrid.filterData({category: "Rollfix Glue"});</JS>

<Button top="230" title="Remove" click="dsListGrid.removeSelectedData()"/>
  

