CODEWITHSUNDEEP
c#filefile-locking
user3791372
user3791372

Reputation: 4695

File remains locked despite unlocking

Why am I receiving an IOException when I come to delete this file? Surely I have unlocked it? Apparently another process is still using the file, despite not touching it otherwise.

using (var lockFile = new FileStream(lockFilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.None))
{
    try
    {
        var productCount = downloadStuff();
    }
    catch (Exception e)
    {

    }
    finally
    {
        lockFile.Unlock(0,lockFile.Length);
        File.Delete(lockFilePath);
    }

}

Upvotes: 0

Views: 335

Answers (1)

Dmitry
Dmitry

Reputation: 14059

I believe your problem caused by the fact a file is still open when you call File.Delete.
Try to move the File.Delete call out of the using block:

using (var lockFile = new FileStream(lockFilePath, ...))
{
    ...
}
File.Delete(lockFilePath);

Or simply call lockFile.Close before File.Delete:

finally
{
    lockFile.Close();
    File.Delete(lockFilePath);
}

Upvotes: 3

Related Questions