Question

I am currently trying to declare a public string within a while loop, as I would like to use it (the string) in other methods

The string in question is “s”

private void CheckLog()
{
    bool _found;
    while (true)
    {
        _found = false;
        Thread.Sleep(5000);
        if (!System.IO.File.Exists("Command.bat")) continue;
        using (System.IO.StreamReader sr = System.IO.File.OpenText("Command.bat"))
        {
            string s = "";
            while ((s = sr.ReadLine()) != null)
            {
                if (s.Contains("mp4:production/CATCHUP/"))
                {
                    _found = true;
                    break;
                }
            }
        }
    }
}

Answer 1

you can’t declare public string inside the method.
Try this:

string s = "";
private void CheckLog()
{
    bool _found;
    while (true)
    {
        _found = false;
        Thread.Sleep(5000);
        if (!System.IO.File.Exists("Command.bat")) continue;
        using (System.IO.StreamReader sr = System.IO.File.OpenText("Command.bat"))
        {
            //s = "VALUE";
            while ((s = sr.ReadLine()) != null)
            {
                if (s.Contains("mp4:production/CATCHUP/"))
                {
                    _found = true;
                    break;
                }
            }
        }
    }
}