并发集合在C＃ [英] Concurrent collections in C#

问题描述

我正在寻找一种在C＃中获取并发集合的方法，或者至少一个支持并发枚举器的集合。现在当我迭代的集合发生变化时，我得到一个InvalidOperationException。我可以只是深复制集合，并使用私人副本，但我想知道是否可能有更好的方法

I'm looking for a way of getting a concurrent collection in C# or at least a collection which supports a concurrent enumerator. Right now I'm getting an InvalidOperationException when the collection over which I'm iterating changes. I could just deep copy the collection and work with a private copy but I'm wondering if there is perhaps a better way

代码片段：

foreach (String s in (List<String> )callingForm.Invoke(callingForm.delegateGetKillStrings))
    {
        //do some jazz
    }

- 编辑 -

我采用了答案，但也发现我需要确保写入集合的代码需要尝试获取锁。

I took the answer but also found that I needed to ensure that the code which was writing to the collection needed to attempt to get a lock as well.

    private void addKillString(String s)
    {
        lock (killStrings)
        {
            killStrings.Add(s);
        }
    }

推荐答案

比起深度复制，你最好的打赌可能是锁定集合：

Other than doing a deep-copy your best bet might be to lock the collection:

   List<string> theList = (List<String> )callingForm.Invoke(callingForm.delegateGetKillStrings);
    lock(theList.SyncRoot) {
        foreach(string s in theList) {
               // Do some Jazz
        }
    }

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