using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace ConsoleApplication1
{
public class Class1
{
static void Main(string[] args)
{
List<Car> mylist = new List<Car>();
Car car1;
Car car2;
Car car3;
car1 = new Car()
{
make = "Honda",
id = 1
};
car2 = new Car()
{
make = "toyota",
id = 2
};
car3 = new Car()
{
make = "Honda",
id = 3,
color = "red"
};
mylist.Add(car1);
mylist.Add(car2);
**////mylist.Where(p => p.id == 1).SingleOrDefault() = car3;**
}
}
public class Car
{
public int id { get; set; }
public string make { get; set; }
public string color { get; set; }
}
}
如何以最好的方式通过用ID为3的本田车替换ID为1的本田车来更新列表。
index
еӨ„зҡ„жұҪиҪҰзҡ„еј•з”ЁSelectedCar
пјҢйӮЈд№ҲиҝҷдёӘеј•з”Ёдјҡиў«з ҙеқҸиҝҳжҳҜSelectedCar
зҺ°еңЁе°ҶжҢҮеҗ‘car3
жұҪиҪҰпјҹ - Philippe LavoieList
对象开始,你必须首先使用.ToList()
或类似的方法,FindIndex 是 List 方法,而不是 Collection 或 Array(或其他泛型)方法。 - Nevyn