public void ReduceComposeItem(SonCoupon item)
{
if (composeRewads != null)
{
composeRewads.Remove(item);
}
}
public void AddComposeItem(SonCoupon item)
{
if (composeRewads == null)
{
composeRewads = new List <SonCoupon>();
}
composeRewads.Add(item);
}
