Question

I have LINQ Query which return result in below format

 -- Parent1
 ----Childs
 ------key - aa
 ------value - new
 ----Childs
 ------key - bb
 ------value - old
 -- Parent2
 ----Childs
 ------key - cc
 ------value - test
 ----Childs
 ------key - dd
 ------value - tesst

I want to fetch the child value in one line using Linq. currently I can get the value but in two line of code which i don’t like it

 var firstPoint = SeriesList.Select(i => i.Childs.Where(j => j.key == "aa"))
                            .FirstOrDefault();
 decimal index = firstPoint.Select(d => d.Value)
                           .FirstOrDefault();

Answer 1

decimal index = SeriesList.Select(i => i.Childs.Where(j => j.key == "aa"))
    .FirstOrDefault()
    .FirstOrDefault().Value;