Server.Mobiles.PlayerMobile.CheckNonlocalDrop C# (CSharp) Method

        public override bool CheckNonlocalDrop(Mobile from, Item item, Item target)
        {
            if (!base.CheckNonlocalDrop(from, item, target))
                return false;

            if (from.AccessLevel >= AccessLevel.GameMaster)
                return true;

            Container pack = this.Backpack;
            if (from == this && this.HasTrade && (target == pack || target.IsChildOf(pack)))
            {
                BounceInfo bounce = item.GetBounce();

                if (bounce != null && bounce.m_Parent is Item)
                {
                    Item parent = (Item)bounce.m_Parent;

                    if (parent == pack || parent.IsChildOf(pack))
                        return true;
                }

                SendLocalizedMessage(1004041); // You can't do that while you have a trade pending.
                return false;
            }

            return true;
        }