How to search in 2D array by LINQ ?[version2]

Question

I have an 2D array like this:

string[,] ClassNames =
{
  {\"A\",\"Red\"},
  {\"B\",\"Blue\"},
  {\"C\",\"Pink\"},
  {\"D\",\"Green\"},
  {\"         


        

Answer 1

Here you are:

color = ClassNames.Cast()
                  .Select((x, i) => new { x, i })
                  .GroupBy(x => x.i / 2, (k,x) => x.Select(y => y.x))
                  .Where(g => g.First() == className)
                  .Select(x => x.Last()).First();

But to be honest, I would never use LINQ to do that. It's less efficient, less readable and worse to maintain. You should consider using your existing for loops or change your data structure, to be List or Dictionary instead of string[,].