Properties error

[Stavros]

I am trying to set the BackColor property in the ItemStyle using this guide http://www.telerik.com/help/aspnet-ajax/grdgettingstarted.html
but I am getting the following error :

Properties :

Object reference not set to an instance of an object.

[Princy]

You can try setting the BackColor for cells in a column either in the aspx or in the code behind as shown:
aspx:

  <telerik:GridBoundColumn DataField="FirstName" UniqueName="FirstName" HeaderText="FirstName">
   <ItemStyle BackColor="Blue" />
 </telerik:GridBoundColumn>

cs:

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
   {
       if (e.Item is GridDataItem)
        {
            GridDataItem item = (GridDataItem)e.Item;
            item["FirstName"].BackColor= System.Drawing.Color.Brown;
         }
   }

Thanks
Princy