C# list sort by two columns

Question

I have a C# custom object list that I need to sort by two different variables one is a boolean and the other is a string. I can sort by either of the criteria, but

Answer 1

I have a class that creates CSV files using List> in a _Records variable. I needed way to sort it after the fact, and LINQ was no good.

This is what I created as a multi-sort by passing in the indexes of the columns I wanted to sort.

public void OrderBy(params int[] columnIndexes)
{
    _Records.Sort((x, y) =>
    {
        foreach (int i in columnIndexes)
        {
            int result = string.Compare(x[i], y[i]);
            if (result != 0)
                return result;
        }
        return 0;
    });
}

Usage would then be...

csv.OrderBy(1, 3, 5);