c# async tutorial

Write in frontLearning Async, a friend recommended the "async in c#5.0", did not find the Chinese version, coincidentally also want to improve the English, with my poor English translation of some important parts, purely entertainment, simple sharing, keep learning, remember humility.If you think this is a bad thing to translate, just step on it. If you feel wort

The copyright of this article belongs to the blog park and the author Wu Di himself together. Reprint and crawler must be in a prominent position to indicate the source: Http://www.cnblogs.com/tdwsSix months ago translated a series of very bad asynchronous programming articles, in the asynchronous common language: "At some time in the future" I will also re-translate async in c#5.0 http://www.cnblogs.com/td

1. Page Header True " %>2.Protected Async void Button1_Click (object sender, EventArgs e){TextBox1.Text = new Class1 (). Start ();int contentlength = await accessthewebasync (); this will block the subsequent execution.TextBox1.Text + = "1245";TextBox1.Text + = ContentLength;}Async Taskreturn value type task{HttpClient client = new HttpClient ();TaskDoindependentwork ();String urlcontent = await getstringt

1. Async with await in pairs appears async is used before method, method decent face with await.2. Using async and await to define an async method does not create a new thread.3.await must be a long time to sweep the task, to use Task.run (() =>{}); Similar code to execute.4. Return to written task5. Interface does not

Class Program {static void Main (string[] args) {Console.WriteLine ("I am the main thread, Threads id:{0}", thre Ad. Currentthread.managedthreadid); Testasync (); Console.ReadLine (); } static async void Testasync () {Console.WriteLine ("Before calling Getreturnresult (), Thread id:{0}. Current time: {1} ", Thread.CurrentThread.ManagedThreadId, DateTime.Now.ToString (" Yyyy-mm-dd hh:MM:ss ")); var nam

depend on the string from GetstringasyncDoindependentwork ();The await operator slows down the accessthewebasync.-Accessthewebasync until Getstringtask is complete before continuing execution.-At the same time, control is returned to the caller of Accessthewebasync.-Control recovery When the Getstringtask is complete.-The await operator then retrieves a string from Getstringtask.String urlcontents = await getstringtask;The return statement indicates that an integer is returned.return urlcontent

depend on the string from GetstringasyncDoindependentwork ();The await operator slows down the accessthewebasync.-Accessthewebasync until Getstringtask is complete before continuing execution.-At the same time, control is returned to the caller of Accessthewebasync.-Control recovery When the Getstringtask is complete.-The await operator then retrieves a string from Getstringtask.String urlcontents = await getstringtask;The return statement indicates that an integer is returned.return urlcontent

. NET (C #): await returns the async method of the Task, I.Thread world before FrameWork 4.0　　 Before. NET FrameWork 4.0, if we use a thread. There are generally the following methods: Use the System. Threading. Thread class, call the instance method Start () to Start a new Thread, and call the Abort () method to terminate the Thread in advance. Use the System. Threading. ThreadPool class to call the sta

1. c#5.0 added async, await keyword. asyncis the modifier used when declaring an async method, the declaration is placed before the return value, the await expression is responsible for consuming asynchronous operations, cannot appear in a catch or finally block, a non-asynchronous anonymous function (an anonymous method that is not declared with

to the following logic ASYNC1Static Async void Async1 () { = (HttpWebRequest) webrequest.create ("http://cnblogs.com/"); await Myreq.getrequeststreamasync (); // to do } Above is the implementation of the Net class library asynchronously, if you want to implement your own method asynchronously.APM Mode: Public Delegate int MyDelegate (int x); New return 1 ; }); Mathdel.begininvoke (1, (a) +

Explore the Async and Await analysis of c #Async and Await are newly added asynchronous programming methods in net4.x. The objective of Async and Await is to simplify asynchronous programming. The following is a simple comparison with the previous APM method. In APM mode, BeginGetRequestStream needs to pass in the call

Translated from a post, original: The performance characteristics of async methods in C #Asynchronous series Anatomy of Async methods in C # Extending async methods in C # Performance characteristics of

The addition of threads in C++11 allows us to create threads very conveniently, and its basic usage is this:void f (1); t.join (); But the thread is a relatively low-level thing, sometimes use some inconvenience, such as I want to get the results of the thread function, I can not directly through the Thread.Join () to get results, then you have to define a variable, the thread function to assign a value to the variable, and then join, In the end, the

"; } }} TKB to Jane: http://www.cnblogs.com/farb/qq:782762625 welcome you to Exchange!This article copyright belongs to the author and the blog Garden altogether, welcome reprint. Without the consent of the author, the original link and the author must be clearly marked on the article page, otherwise the right to pursue legal liability is reserved.If you think this article is good or something, you can click on the "recommended" button in the lower right corner, because your support is

Explore the Async and Await analysis of c,Reading Directory: Basic Introduction Async and Await are newly added asynchronous programming methods for net4.x. The objective of Async and Await is to simplify asynchronous programming. The following is a simple comparison with the previous APM method. In APM mode, BeginGetR

() { HttpWebRequest myreq = (HttpWebRequest) webrequest.create ("http://cnblogs.com/") ; await Myreq.getrequeststreamasync (); To do } The above is an asynchronous implementation of the Net class library, if you want to implement your own method.APM Mode: public delegate int MyDelegate (int x); MyDelegate Mathdel = new MyDelegate ((a) => {return 1;}); Mathdel.begininvoke (1, (a) => {},null);

task returned by Doo in test, we need his result at this point, and his result is to need the other awaited results contained in his own method, which can be understood as the child result of being waited. So your results need other results, so the result must wait for the results to be relied upon. So the test method await the result of the Doo method will also wait for all doo within the await, not the other doo in the non-await multi-threaded execution (of course, from a technical point of v

The addition of threads in C++11 allows us to create threads very conveniently, and its basic usage is this:void f (int n); Std::thread t (f, n + 1); T.join ();But the thread is a relatively low-level thing, sometimes use some inconvenience, such as I want to get the results of the thread function, I can not directly through the Thread.Join () to get results, then you have to define a variable, the thread function to assign a value to the variable, an

New features in C ++ 11: std: ure and std: async Let's start with an episode. Baidu Translation:Std: future Imagine that you want a thread to do something and then return you a result. At the same time, if you are doing some other work, it may not take you some time. You want to get the results of that thread at a specific time.In win32, you canUse CreateThread to start a threadIn the thread, start the task

[C #] Three return types of async,Three return types of async The blogger has simply written eight asynchronous articles published by himself. This time I want to talk about the async return type separately. The Asynchronous Method has three return types available for developers: Task When is the return type required?