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ID: csharp-best-practices/async-task-not-void
Language: C#
Severity: Error
Category: Best Practices
According to the task asynchronous programming (TAP) model, async methods should only return void
if they are event handlers. Otherwise, they should return Task
or Task<TResult>
class NonCompliant {
async void AsyncFetch() { /* ... */ }
async void Click() { /* ... */ }
async void HandleClick(object sender, EventArgs e, string notEventHandlerDelegateSignature) { /* ... */ }
}
class Compliant {
async Task AsyncFetch() { /* ... */ }
async void OnClick() { /* ... */ }
async void HandleClick(object sender, EventArgs e) { /* ... */ }
}
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