WebJul 12, 2024 · 2 Answers. Your method should either return a Task (probably Task.CompletedTask) or use the async keyword and await something. private Task DeleteEmployeePayHistories () { Employee.EmployeePayHistories.Remove (SelectedPayHistory); SelectedPayHistory = null; return Task.CompletedTask; } WebOct 28, 2012 · In the example given by the OP ( var ex = new Example (); await ex; ), instead you didn't answer how to create an awaitable class, you answered how to get around a constructor not being awaitable. This may not be your fault; perhaps the OP is poorly put. To create an awaitable class, you just have to have a GetAwaiter () method. …
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WebJan 19, 2024 · Tasks support synchronization of async operation, and managing callbacks. Whether a task runs on the current thread of a new thread depends on the code the task is wrapping. async operations supported by the O/S (file, network, timer, etc), use the calling thread. the the task code creates a new thread to get async behavior, then the code and … Web1 Answer. If asynchronicity is not a requirement and you are fine with having one thread that almost always waits, you could do it by giving the lambda some blocking way to access the key. For example: public void RegisterEvaluator (Func, bool> evaluate); … keyUpper.RegisterEvaluator ( getKey => getKey () == Key.A && getKey ... skills school near me
c# - How to create an awaitable class? - Stack Overflow
WebAsync void methods should (most of the time) not be used as you cannot wait for completion of the task and any exception thrown may not be handled (and so it can crash your application): Why exactly is void async bad? Share Follow answered Feb 28, 2024 at 20:12 asidis 1,344 16 24 Thanks for your time @asidis. WebIn order for something to be awaited, it has to be awaitable. As void is not so, you cannot await on any Action delegate. An awaitable is any type that implements a GetAwaiter method, which returns a type that implements either INotifyCompletion or ICriticalNotifyCompletion, like Task and Task, for example. WebOct 12, 2024 · The task type may be non-generic, for async methods that do not return a value, or generic, for methods that return a value. To support await, the task type must have a corresponding, accessible GetAwaiter() method that returns an instance of an awaiter type (see C# 7.7.7.1 Awaitable expressions). swallowtail arrowhead