ASP.NET 4 Developer preview中的异步操纵器

　　在放弃了对.NET 3的之后, ASP.NET MVC 4 彻底拥抱了Task类库, 你不再蛋疼的给每个Action写两个方法, 也无需傻傻的对异步Action计数器增减了(AsyncManager.OutstandingOperations.Increment()), 现在的你只需拿起手指, 轻轻敲几下, 其他的事情都由帮你完成.

　　

public class PortalController : AsyncController {
public Task News( stringcity) {
returnTask.Factory.StartNew(() => RunThread(city)).ContinueWith(t => {
returnView(newViewStringModel(){Text = t.Result});
});}
privatestringRunThread(stringinput){
Thread.Sleep(5000);
returninput;}
}

　　是否好多了?Lamda可以让一切更爽:

public Task News(stringcity) {
returnTask.Factory.StartNew(() => RunThread(city)).ContinueWith(t => View(newViewStringModel{
Text = t.Result }));
}

 

   asp.net mvc 4.0 更简洁的写法 是否好多了?Lamda可以让一切更爽:

       

    public class Default1Controller : AsyncController

    {

        TRSLMS.Data.Models.DataDbContext db = new Data.Models.DataDbContext();

        //

        // GET: /HomePage/Default1/

        public Task<ViewResult> FooBar()

        {

     // StartNew 开始执行 返回action 或则直接返回数据  ContinueWith 结束后返回值

            return Task.Factory.StartNew(() => { return db.USER.ToList(); }).ContinueWith(t =>{return View(t.Result);});

        }

    }