private List <FavoriteLine> lineCollection = new List <FavoriteLine>(); //A list that contains all the chosen favorites
public void AddFavorite(Movie movie, int quantity)
{
FavoriteLine line = lineCollection
.Where(p => p.Movie.MovieId == movie.MovieId) //Filters items that no not match the predicate
.FirstOrDefault(); //return first item or the default value if there are no items
if (line == null) //if empty
{
lineCollection.Add(new FavoriteLine {
Movie = movie, Quantity = quantity
}); //then add a movie to the favorites
}
else
{
line.Quantity += quantity; //if it allready exist, dont duplicate
}
}
/// <summary>
/// 添加收藏
/// </summary>
/// <param name="treasure">收藏的物品对象</param>
/// <param name="quantity">数量</param>
public void AddItem(Treasure treasure, int quantity)
{
//获取当前物品的详情
FavoriteLine line = lineCollection
.Where(t => t.Treasure.TreasureUID == treasure.TreasureUID)
.FirstOrDefault();
//如果不存在就添加
if (line == null)
{
lineCollection.Add(new FavoriteLine
{
Treasure = treasure,
Quantity = quantity
});
}
//如果存在则数量+1
else
{
line.Quantity += quantity;
}
}
