您需要实现IEquatable或重载Equals()和GetHashCode()
例如：
public class CartProduct : IEquatable<CartProduct>{ public Int32 ID; public String Name; public Int32 Number; public Decimal CurrentPrice; public CartProduct(Int32 ID, String Name, Int32 Number, Decimal CurrentPrice) {this.ID = ID;this.Name = Name;this.Number = Number;this.CurrentPrice = CurrentPrice; } public String ToString() {return Name; } public bool Equals( CartProduct other ) {// Would still want to check for null etc. first.return this.ID == other.ID &&this.Name == other.Name &&this.Number == other.Number &&this.CurrentPrice == other.CurrentPrice; }}解决方法
我正在尝试.Contains()在自定义对象列表上使用该功能
这是清单：
List<CartProduct> CartProducts = new List<CartProduct>();
和CartProduct：
public class CartProduct{ public Int32 ID; public String Name; public Int32 Number; public Decimal CurrentPrice; /// <summary> /// /// </summary> /// <param name='ID'>The ID of the product</param> /// <param name='Name'>The name of the product</param> /// <param name='Number'>The total number of that product</param> /// <param name='CurrentPrice'>The currentprice for the product (1 piece)</param> public CartProduct(Int32 ID,String Name,Int32 Number,Decimal CurrentPrice) {this.ID = ID;this.Name = Name;this.Number = Number;this.CurrentPrice = CurrentPrice; } public String ToString() {return Name; }}
所以我尝试在列表中找到类似的购物车产品：
if (CartProducts.Contains(p))
但是它忽略了类似的购物车产品，而且我似乎也不知道要检查什么-ID？还是全部？
提前致谢！:)
