Question

I have successfully got the C# StreamReader working:

using (StreamReader fileParser = new StreamReader(tbFileSelection.Text))
{
  String line = fileParser.ReadToEnd();
  Console.WriteLine(line);
}

I am currently writing each line of the file to the console. I now wish to go through each line and look for a specific tag — [TAG1] if the line starts with [TAG1] — I wish to display the entire line in the console. Please note, the file is not XML-based. Can anyone suggest a way forward with this idea? I believe I need to tokenize the string Line?

Answer 1

You can use StartsWith method to do filtering from lines:

lines = File.ReadLines(tbFileSelection.Text)
            .Where(line => line.StartsWith("[TAG1]"));

foreach (var line in lines)
{
    Console.WriteLine(line);
}