C# How to skip number of lines while reading text file using Stream Reader?

Question

I have a program which reads a text file and processes it to be seperated into sections.

So the question is how can the program be changed to allow the program to skip reading the first 5 lines of the file while using the Stream Reader to read the file?

Could someones please advise on the codes? Thanks!

The Codes:

class Program
{
    static void Main(string[] args)
    {
        TextReader tr = new StreamReader(@"C:\Test\new.txt");

        String SplitBy = "----------------------------------------";

        // Skip first 5 lines of the text file?
        String fullLog = tr.ReadToEnd();

        String[] sections = fullLog.Split(new string[] { SplitBy }, StringSplitOptions.None);

        //String[] lines = sections.Skip(5).ToArray();

        foreach (String r in sections)
        {
            Console.WriteLine(r);
            Console.WriteLine("============================================================");
        }
    }
}

Answer 1

Try the following

// Skip 5 lines
for(var i = 0; i < 5; i++) {
  tr.ReadLine();
}

// Read the rest
string remainingText = tr.ReadToEnd();

Answer 2

If the lines are fixed then the most efficient way is as follows:

using( Stream stream = File.Open(fileName, FileMode.Open) )
{
    stream.Seek(bytesPerLine * (myLine - 1), SeekOrigin.Begin);
    using( StreamReader reader = new StreamReader(stream) )
    {
        string line = reader.ReadLine();
    }
}

And if the lines vary in length then you'll have to just read them in a line at a time as follows:

using (var sr = new StreamReader("file"))
{
    for (int i = 1; i <= 5; ++i)
        sr.ReadLine();
}