WebJan 13, 2024 · Returning null from non- async Task -returning methods returns a null Task, which is almost never what a caller wants and invites NREs. Instead, ensure that all Task -returning methods return a Task; you can use Task.FromResult (null) in place of null. We don’t have to worry about manually creating a Task when we mark a method as async. WebJun 18, 2024 · 1 Answer. You should use Task.FromResult, (and don't use Thread.Sleep from a Task ): static async Task ImportCustomers () { // some heavy operations await Task.Delay (1000); // Already awaited, so we can return the result as-is. return 1; // Or: if not already awaited anything, // and also with non-async tasks, use: return …
How to Return a Value from Task in C# - Dot Net Tutorials
Webawait Task.WhenAll (tasks): This statement tells that there is a list of tasks. Please wait for all of the tasks to be done before continuing with the execution of this method and all of the tasks are going to be run simultaneously. As tasks contain 10 entries, so, all these 10 tasks are to be executed simultaneously. WebUsing the ContinueWith method: If you want to get the result or return value of a Task and perform some additional processing when it completes, you can use the ContinueWith method to chain a continuation to the Task. The continuation can access the result or return value of the Task using its Result property. Here's an example: shares bed and breakfast
Task.WhenAll Method (System.Threading.Tasks) Microsoft Learn
WebApr 7, 2024 · See also. Async methods can have the following return types: Task, for an async method that performs an operation but returns no value. Task, for an async method that returns a value. void, for an event handler. Any type that has an accessible GetAwaiter method. The object returned by the GetAwaiter method must … WebAlthough we use both of them i.e. Task and Task in C# for the return data type of an asynchronous method, the difference is that the Task is for methods that do not return a value while the Task is for methods that do return a value of type T where T can be of any data type, such as a string, an integer, and a class, etc. WebThis applies to both synchronous and asynchronous methods. The only difference is that for asynchronous methods that return Task, exceptions should be thrown using the Task class's TrySetException method, rather than being thrown directly. Here's an example of how to throw an exception from an asynchronous method that returns Task: shares bed and breakfasting rules