csharp read only file used by other app

Code Example - csharp read only file used by other app

                
                        using(FileStream logFileStream = new FileStream(@"c:\test.txt", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
    using(StreamReader logFileReader = new StreamReader(logFileStream))
    {
        string text = logFileReader.ReadToEnd();
        // Your code..
    }
}