title: How to detect input string characters language with build in .NET functionalities?
body: <p>I want to detect if my input string has <code>Arabic</code> characters in it.<br>
  Maybe some code like this :</p>
  
  <pre><code>string str = "سS";
  str[0].IsArabicCharacter(); //true
  str[1].IsArabicCharacter(); //false
  </code></pre>
  
  <p>Currently using mapping but I want to migrate to some C# built in feature.</p>
  
  <pre><code>ArabicChars = "ساینبتسیکبدثصکبثحصخبدوزطئظضچج";
  string str = "ل";
  if(ArabicChars.Contains(str[0]) return true; else return false;
  </code></pre>