//Template column of the datagrid 

     
          
               
               
               
          


//ItemDataBound for the datagrid 

private void dgSiteSummary_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
        switch ( e.Item.ItemType )
        {
             //when we are checking for values equal to '0' we have to check both Items and Alternating Items
            case ListItemType.Item:
            case ListItemType.AlternatingItem:    	
                 if( double.Parse ( ((Label)(e.Item.FindControl("lblLabour"))).Text ) == 0 )
                   {
                           //Getting the column based on the cell number. The same can be done using   FindControl too
                           e.Item.Cells[3].BackColor=Color.Lime;
                   }
         }
}