问题描述
大家都用大量的名单。我需要遍历这个名单，所以我用已知格局。
Everyone use lot of List. I need to iterate over this list, so I use the known SyncRoot pattern.
最近我的张贴SyncRoot上应该有利于避免嵌入线程安全的（每个方法将一个私有对象锁定在不使用SyncRoot属性暴露它）。我能理解它，并部分我同意这一点。
Recently I noticed in this post that the SyncRoot should be avoided in favor of "embedded" thread-safety (each method will lock on an private object without exposing it using SyncRoot property). I can understand it, and partially I agree on that.
现在的问题是，的类没有实现SyncRoot属性，即使实现的接口，它暴露的 SyncRoot上的属性。我说这bause代码
The question is that List<T> class doesn't implements the SyncRoot property, even if implements the ICollection interface, which expose the SyncRoot property. I say this bause the code
List<int> list = new List<int>()
list.SyncRoot;
给我以下编译器错误：
give me the following compiler error:
错误CS0117：'System.Collections.Generic.List'不包含'SyncRoot上
...如果这是真的，我怎么可能同步类型列表℃的公共财产; T>在它迭代时？
...If this is true, how could I synchronize a public property of type List<T> when iterating over it?
推荐答案
它实际上是明确落实。
object ICollection.SyncRoot
{
get
{
if (this._syncRoot == null)
{
Interlocked.CompareExchange(ref this._syncRoot, new object(), null);
}
return this._syncRoot;
}
}
这意味着你必须转换为 ICollection的来使用它。
This means you must cast to ICollection to use it.
这篇关于清单< T>不实现SyncRoot上！的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！