public void Update(DealHistory entity)
{
var modified = History.First(m => m.DealId == entity.DealId);
modified.BuyerId = entity.BuyerId;
modified.SellerId = entity.SellerId;
modified.ShareId = entity.ShareId;
modified.Amount = entity.Amount;
modified.Total = entity.Total;
}
public void Remove(DealHistory entity) => History.Remove(entity);
public int Add(DealHistory entity) => History.Add(entity).DealId;
