/// <summary>
/// 异步方法
/// </summary>
public static void AsyncAdvanced()
{
Console.WriteLine("*******AsyncAdvanced********");
string str = string.Format("Async-{0}", 1);
Delegate method = DoSomething;
//第一个参数为委托的参数，第二个参数为异步执行完成后的回调，第三个参数是用户定义的对象（AsyncState）
AsyncCallback callback = t => Console.WriteLine("这里是AsyncCallback，当前线程ID={0}", Thread.CurrentThread.ManagedThreadId, t.AsyncState);
IAsyncResult result = method.BeginInvoke(str, callback, "dsh");
#region 异步等待（让主线程等待）
//方式一（一直等到结束）
result.AsyncWaitHandle.WaitOne(-1);
//方式二（此方式可做进度条）
while (!result.IsCompleted)
{
Thread.Sleep(100);
Console.WriteLine("请继续等待！");
}
//方式三
method.EndInvoke(result);
#endregion
Console.WriteLine("*******end AsyncAdvanced********");
#region 接收返回值
Func <string, long> method_result = GetSomething;
result = method_result.BeginInvoke(str, callback, "dsh");
//主线程得到返回值
long lResult = method_result.EndInvoke(result);
#endregion
Console.Read();
}
/// <summary>
/// Wraps handler for Asynchronous execution
/// </summary>
/// <typeparam name="TEvent"></typeparam>
/// <param name="handler"></param>
/// <param name="eventBusService">eventBusService to use, EventBus.Default if null</param>
/// <returns></returns>
public static Delegate <TEvent> Async <TEvent>(this Delegate <TEvent> handler, EventBusService eventBusService = null)
{
return((param) =>
{
handler.BeginInvoke(param, new AsyncCallback <TEvent>(handler,
eventBusService == null ? EventBus.Default : eventBusService)
.Callback, null);
});
}
/// <summary>
/// 异步方法
/// </summary>
public static void Async()
{
Console.WriteLine("*******Async********");
for (int i = 0; i < 5; i++)
{
string str = string.Format("Async-{0}", i);
Delegate dele = DoSomething;
dele.BeginInvoke(str, null, null);
}
Console.WriteLine("*******end Async********");
Console.Read();
}
public void ShowAndCalculate(string query, string appkey)
{
this.Show();
Properties.Settings.Default.WA_RespSend++;
Properties.Settings.Default.Save();
Engine = new WolframAlphaEngine(appkey);//KLQJ9W-5UU8EGQUG3
WolframAlphaQuery WAQ = new WolframAlphaQuery();
WAQ.APIKey = appkey;
WAQ.MoreOutput = false;
WAQ.Asynchronous = false;
WAQ.AllowCaching = false;
WAQ.Query = query;
WAQ.TimeLimit = 30000;
WAQ.Format = WolframAlphaQueryFormat.PlainText + "," + WolframAlphaQueryFormat.Image;
pictureLoadAnim.Image = Properties.Resources.anim_0;
loadingslide = 0;
timerAnim.Start();
del = new Delegate(Engine.LoadResponse);
del.BeginInvoke(WAQ, new AsyncCallback(CallBackFunc), null);
}