Silverlight 跨线程访问无效

解决办法有以下几种

1使用 SynchronizationContext;

此方法需要注意的是,System.Threading.SynchronizationContext.Current必须在UI线程中调用,如果在子线程中,将返回null;

private void button1_Click(object sender, RoutedEventArgs e)
{
    System.Threading.SynchronizationContext sc = System.Threading.SynchronizationContext.Current;
    System.Threading.Thread thread=new System.Threading.Thread(()=>{
        sc.Post((o) => {
            ((Button)sender).Content = "Hello";
        }, null);
       

    });
    thread.Start();
}

2 使用Dispatcher.BeginInvoke方法

private void button1_Click(object sender, RoutedEventArgs e)
{
   
    System.Threading.Thread thread=new System.Threading.Thread(()=>{

        this.Dispatcher.BeginInvoke(() => { ((Button)sender).Content = "Hello"; });
        
    });
    thread.Start();
}

 

3 使用BackgroundWorker 类来代替你的线程类