ReadAllLines for a Stream object?

Question

There exists a File.ReadAllLines but not a Stream.ReadAllLines.

using (Stream stream = Assembly.GetExecutingAssembly().GetManifestR         


        

Answer 1

You can write a method which reads line by line, like this:

public IEnumerable ReadLines(Func streamProvider,
                                     Encoding encoding)
{
    using (var stream = streamProvider())
    using (var reader = new StreamReader(stream, encoding))
    {
        string line;
        while ((line = reader.ReadLine()) != null)
        {
            yield return line;
        }
    }
}

Then call it as:

var lines = ReadLines(() => Assembly.GetExecutingAssembly()
                                    .GetManifestResourceStream(resourceName),
                      Encoding.UTF8)
                .ToList();

The Func<> part is to cope when reading more than once, and to avoid leaving streams open unnecessarily. You could easily wrap that code up in a method, of course.

If you don't need it all in memory at once, you don't even need the ToList...