Contains Non Letter Non Digit in String - CSharp System

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Description

Contains Non Letter Non Digit in String

Demo Code


using System.Text.RegularExpressions;
using System.Text;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Linq;
using System.IO;//ww w . j  a v a2  s .co  m
using System.ComponentModel;
using System.Collections.Generic;
using System;

public class Main{
        public static bool ContainsNonLetterNonDigit(this string s, bool nullCaseResult = false)
      {
         bool r = false;
         if (s == null)
         {
            r = nullCaseResult;
         }
         else
         {
            foreach (char c in s)
            {
               if (!Char.IsLetterOrDigit(c))
               {
                  r = true;
                  break;
               }
            }
         }
         return r;
      }
}

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