Question

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Wait until file is unlocked in .NET

I have an open file, like a .Doc or .txt, and I have to wait until the user close it.
I already try this, according to Wait until file is unlocked in .NET :

while (true)
{
    try
    {
      using (FileStream Fs = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite, FileShare.None, 100))
        {
            //the file is close
            break;
        }
    }
    catch (IOException)
    {
        //wait and retry
        Thread.Sleep(1000);
    }
}

This works well ,but it may be possible to find a solution without a try/catch and handler the exception ?

Answer 1

Unfortunately no, there is no other way.

The API doesn’t have an event that will fire when a file in unlocked or anything else that is convenient.

Retrying with waits is the best solution with the current API.