How can I read a text file without locking it?

Question

I have a windows service writes its log in a text file in a simple format.

Now, I\'m going to create a small application to read the service\'s log and shows both th

Answer 1

Explicit set up the sharing mode while reading the text file.

using (FileStream fs = new FileStream(logFilePath, 
                                      FileMode.Open, 
                                      FileAccess.Read,    
                                      FileShare.ReadWrite))
{
    using (StreamReader sr = new StreamReader(fs))
    {
        while (sr.Peek() >= 0) // reading the old data
        {
           AddLineToGrid(sr.ReadLine());
           index++;
        }
    }
}