.net - 我在哪里可以找到 ThreadPool.SwitchTo 方法？

Question

我正在研究新的 Async CTP 并研究一些示例代码，

我遇到了这段代码:

public async void button1_Click(object sender, EventArgs e) 
{ 
string text = txtInput.Text; 

await ThreadPool.SwitchTo(); // jump to the ThreadPool 

string result = ComputeOutput(text); 
string finalResult = ProcessOutput(result); 

await txtOutput.Dispatcher.SwitchTo(); // jump to the TextBox’s thread 

txtOutput.Text = finalResult; 
}

请问我在哪里可以找到 ThreadPool.SwitchTo？ SwithcTo 方法不在 ThreadPool 类上

我有一个 AsyncCtpLibrary.dll 的引用......但运气不好

Answer 1

作为引用，CharlesO 在上面的评论中回答了他的问题:

OK, found it guys, Summary: Provides methods for interacting with the ThreadPool. Remarks: ThreadPoolEx is a placeholder.

Public Shared Function SwitchTo() As System.Runtime.CompilerServices.YieldAwaitable Member of System.Threading.ThreadPoolEx Summary: Creates an awaitable that asynchronously yields to the ThreadPool when awaited.