使用linq返回对象的特定属性的列表 [英] Return list of specific property of object using linq

问题描述

给出这样的一个类:

public class Stock
{
    public Stock() {}
    public Guid StockID { get; set; }
    public string Description { get; set; }
}

让我们说我现在有一个List<Stock>.如果我想检索所有StockID的列表并将其填充到IEnumerable或IList中.显然我可以做到这一点.

Lets say I now have a List<Stock>. If I would like to retrieve a list of all the StockIDs and populate it into a IEnumerable or IList. Obviously I can do this.

List<Stock> stockItems = new List<Stock>();
List<Guid> ids = new List<Guid>();

foreach (Stock itm in stockItems) 
{
    ids.Add(itm.StockID);
}

但是有什么方法可以使用Linq达到相同的结果吗?我以为Distinct()可以做到，但无法解决如何达到期望的结果.

But is there some way I could use Linq to achieve the same result? I thought Distinct() might do it but couldn't work out how to achieve the desired result.

推荐答案

var list = stockItems.Select(item => item.StockID).ToList();

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