c# Anagram, check if two strings are the anagram code example

Example 1: c# code to check anagram

string a = "abcd";
string b = "bcda"; // bad daa a1b2c3 abc123

string aa = String.Concat(a.OrderBy(c => c));
string bb = String.Concat(b.OrderBy(c => c));

if (aa == bb)
{
     Console.WriteLine("YES");
}
else
{
     Console.WriteLine("NO");
}

Example 2: c# code to check anagram

if (String.Concat(a.OrderBy(c => c)).Equals(String.Concat(b.OrderBy(c => c))) ...