Question

I have a variable of type List<Detail>

public class Detail {
   public string L { get; set; }
   public string R { get; set; }
}

I also have the value of a string that matches the value in Detail.L.

Is there an easy way that I can get the value of Detail.R that matches this?

Answer 1

Like this to get all matching lefts:

IEnumerable<string> matchRightsToLeft(List<Detail> list, string left)
{
    return list.Where(l => l.left == left).Select(l => l.right);
}

or for the first/only match

string matchRightToLeft(List<Detail> list, string left)
{
    return list.Where(l => l.left == left).FirstOrDefault(l => l.right);
}