how to diplay entity list values in datagrid rows

Purchasefecade facade = new Purchasefecade();
List<purchaseentity> entityList = facade.GetPurchase(Convert.ToString(TxtpurNo.Text.Trim()));
if (entityList != null && entityList.Count > 0)
{
   foreach (PurchaseEntity entity1 in entityList)
   {
      dgv.Rows.Add(new object[] { 
         entity1.ProductId, entity1.PRoductName, entity1.Packing, entity1.BatchNo,
         entity1.PurPrice, entity1.Qty, entity1.Free, entity1.Margin, 
         entity1.ExpiryDate, entity1.ExDuty, entity1.AdTax, entity1.CSTAmnt, 
         entity1.PVatPer, entity1.SalesDiscPer, entity1.SalesPrice, entity1.BatchId,
         entity1.DiscPersentage, entity1.SVatPer, entity1.MRP, entity1.PurChaseId});
   }
}

datagrid.Rows[i].Cells[0]=entity1.ProductId;