I recommend that you not think of this as “using async within LINQ”. Keep in mind what’s in-between the two: delegates. Several LINQ operators take delegates, and async can be used to create an asynchronous delegate. So, when you have an asynchronous method BazAsync that returns a Task: Task BazAsync(TBar bar); then this code results … Read more
I added below settings in .sln.DotSettings <s:String x:Key=”/Default/CodeInspection/CSharpLanguageProject/LanguageLevel/@EntryValue”>CSharp50</s:String> This line was added to .csproj.DotSettings when I tried to disable c#6 for a particular project. After adding this line in .sln.DotSettings resharper is reporting an error whenever I am trying to use c# 6.0 feature.
You have the “Just my code” Option turned on. With this on, it is considering the exception unhandled with respect to “just your code”–because other code is catching the exception and stuffing it inside of a Task, later to be rethrown at the await call and caught by your catch statement. Without being attached in … Read more
I think one of the reasons nothing like this is in the framework is that there is lots of possible variations and each choice will be the right one under certain circumstances: Should the predicates execute in parallel, or in series? If they execute in parallel, should they all execute at once, or should the … Read more
You could do something like this: protected static object[] Args(params object[] args) { return args; } protected void Log(string message, object[] args = null, [CallerMemberName] string method = “”) { // Log } To use the log do like this: Log(“My formatted message a1 = {0}, a2 = {2}”, Args(10, “Nice”));
I think that maybe you misunderstand what async does. The warning is exactly right: if you mark your method async but don’t use await anywhere, then your method won’t be asynchronous. If you call it, all the code inside the method will execute synchronously. Also, you should try to avoid using async void methods, they … Read more
If you have Visual Studio 2012 installed, you will find specification somewhere there: c:\Program Files (x86)\Microsoft Visual Studio 11.0\VC#\Specifications\1033\CSharp Language Specification.docx similar with VS2013: c:\Program Files (x86)\Microsoft Visual Studio 12.0\VC#\Specifications\1033\CSharp Language Specification.docx VS2015: c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC#\Specifications\1033\CSharp Language Specification.docx
Check also: TPL Dataflow Overview about TDF and Rx: Astute readers may notice some similarities between TPL Dataflow and Reactive Extensions (Rx), currently available as a download from the DevLabs prototypes site. Rx is predominantly focused on coordination and composition of event streams with a LINQ-based API, providing a rich set of combinators for manipulating … Read more
Calling await client.GetStringAsync() yields the execution to the calling method, which means it won’t wait for the method to finish executing, and thus won’t block the thread. Once it’s done executing in the background, the method will continue from where it stopped. If you just call client.GetString(), the thread’s execution won’t continue until this method … Read more
No can do. When someone expects a Func<T> f you can assume it will be invoked with something like result = f() – i.e., it does not know about async behavior. If you cheat it by using .Result like you have, it will deadlock on UI thread because it wants to schedule the code after … Read more