webcontrols disapering on postback

 hi
I have dynamically created  usercontrols, with a delete button, they are not raising the events,  I did read the other artical about this but i am still confused.
this is where i create the control. any help would be great.
 
 
 // Display_products[] ot = new Display_products[newarray.Count];

            Dispaly_products[] ot = new Dispaly_products[newarray.Count];
          
            for( int y = 0 ; y < newarray.Count; y++)
            {
                ot[y] = (Dispaly_products)LoadControl("Dispaly_products.ascx");
            ...