如何System.Linq.Enumerable.WhereListIterator&LT转换，诠释>列出< INT&GT ;? [英] How to convert System.Linq.Enumerable.WhereListIterator<int> to List<int>?

问题描述

在下面的例子中，我怎么能轻易转换 eventScores 到列表< INT> ，这样我可以使用它作为 prettyPrint ？

参数

  Console.WriteLine（示例LINQ的公司在哪里：）; 
名单，LT; INT>分数=新的List< INT> {1,2,3,4,5,6,7,8}; 
变种evenScores = scores.Where（ⅰ= I标记％2 == 0）; 
 
动作<名单，LT; INT>中串> prettyPrint =（列表标题）=> 
 {
 Console.WriteLine（*** {0} ***称号）; 
 list.ForEach（ⅰ= GT; Console.WriteLine（ⅰ））; 
}; 
 
 scores.ForEach（ⅰ= GT; Console.WriteLine（ⅰ））; 
 prettyPrint（成绩的成绩：）; 
的foreach（在evenScores INT得分）{Console.WriteLine（分）; } 
  

解决方案

您最好使用了ToList扩展：

  VAR evenScores = scores.Where（I = I标记％2 == 0）.ToList（）; 
  

In the below example, how can I easily convert eventScores to List<int> so that I can use it as a parameter for prettyPrint?

Console.WriteLine("Example of LINQ's Where:");
List<int> scores = new List<int> { 1,2,3,4,5,6,7,8 };
var evenScores = scores.Where(i => i % 2 == 0);

Action<List<int>, string> prettyPrint = (list, title) =>
    {
        Console.WriteLine("*** {0} ***", title);
        list.ForEach(i => Console.WriteLine(i));
    };

scores.ForEach(i => Console.WriteLine(i));
prettyPrint(scores, "The Scores:");
foreach (int score in evenScores) { Console.WriteLine(score); }

解决方案

You'd use the ToList extension:

var evenScores = scores.Where(i => i % 2 == 0).ToList();

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