问题描述
我有一个函数 Run(string, string[]) 我想在单独的线程上运行，所以我使用委托和 BeginInvoke:
I have a function Run(string, string[]) which I want to run on a separate thread, so I am using a delegate and BeginInvoke:
private Func<string, string[], Stack<StackItem>> runner;
public MainPage()
{
runner = Run;
}
private void btnStep_Click(object sender, RoutedEventArgs e)
{
// snip
runner.BeginInvoke(tbCode.Text, GetArgs(), null, null); // Exception here
// snip
}
private Stack<StackItem> Run(string program, string[] args)
{
return interpreter.InterpretArgs(parser.Parse(lexer.Analyse(program)), args);
}
但是，我收到 NotSupportedException was unhandled by user code 并显示 BeginInvoke() 方法的 Specified method is not supported 消息代表的.怎么了?
However, I get a NotSupportedException was unhandled by user code with a message of Specified method is not supported for the BeginInvoke() method of the delegate. What's going wrong?
我正在使用 Silverlight 4.0 和 VS2010.
I am using Silverlight 4.0 and VS2010.
推荐答案
异步 Delegate.BeginInvoke 不适用于 Silverlight 中的委托.
The asynchronous Delegate.BeginInvoke is not available for delegates in Silverlight.
您应该改用 BackgroundWorker异步运行任何东西.
You should use a BackgroundWorker instead to run anything asynchronously.
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