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How can I wait for a method to finish using C#?
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Use of setTimeout() function: In order to wait for a promise to finish before returning the variable, the function can be set with setTimeout(), so that the function waits for a few milliseconds. Use of async or await() function: This method can be used if the exact time required in setTimeout() cannot be specified.
To handle the asynchronous nature of JavaScript executions, you can use one of the three available methods to wait for a function to finish: Using callback functions. Using Promise object. Using async/await keywords.
How to wait for async calls to finish Javascript. let first = new Promise((resolve, reject) => { // download first file resolve() }) let second = new Promise((resolve, reject) => { // download second file resolve() }) await Promise. all([first, second]) alert('Finished all downloads!
Unless you're using multiple threads, execution won't continue in the calling code until the method has completed anyway.
If you are using multiple threads, it really depends on how you're launching the task. For example, you could be using asynchronous delegate execution (foo.BeginInvoke(...)) or the Task Parallel Library, or simply creating a new thread. Each approach has its own way of waiting until the task/thread has completed. Please give us more information and we can help you more, but options may include:
EndInvoke on the delegate, passing in the IAsyncResult returned by BeginInvoke
Task.Wait (optionally with a timeout)Thread.Join (optionally with a timeout)
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Note: Only works for blocking calls.
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