Using LINQ to update string array

Question

I\'m trying to create a method to update an AssemblyInfo file with a new version string, using LINQ. I can successfully extract the string I need to update, but am not sure

Answer 1

I suggest using Regex for this:

private static void UpdateVersion(string file, string version)
{
    var fileContent = File.ReadAllText(file);
    var newFileContent = Regex.Replace(
        fileContent,
        @"(?<=AssemblyVersion\("")(?.*?)(?=""\))",
        version);
    File.WriteAllText(file, newFileContent);
}

You can still do this with LINQ, but this will be less efficient and more error-prone, I guess.

private static void UpdateVersion(string file, string version)
{
    var linesList = File.ReadAllLines(file).ToList();
    var line = linesList.Single(x => x.Trim().StartsWith("[assembly: AssemblyVersion"));
    linesList.Remove(line);
    linesList.Add("[assembly: AssemblyVersion(\"" + version + "\")]");
    File.WriteAllLines(file, linesList.ToArray());
}