Validate Phone Number : Regular Expression « Development Class « C# / C Sharp

1. C# / C Sharp
2. Development Class
3. Regular Expression

Validate Phone Number

 

using System;
using System.Text.RegularExpressions;

class RegexSubstitution
{
   public static void Main()
   {
      string text = "124";

      if ( !Regex.Match(text,@"^[1-9]\d{2}-[1-9]\d{2}-\d{4}$" ).Success )
      {
         Console.WriteLine( "Invalid phone number");
      }   
   }
}

           
         
  

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