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Is email by regular expression

//http://metalinq.codeplex.com/license //Apache License 2.0 (Apache) using System; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Text.RegularExpressions; namespace MetaliqSilverlightSDK {     public class StringUtil     {         public static bool isEmail(string inputEmail)         {             bool result = false;             try             {                 string strRegex = @"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}" +                       @"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +                       @".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";                 Regex re = new Regex(strRegex);                 if (re.IsMatch(inputEmail))                 {                     result = true;                 }             }             catch (Exception ex)             {             }             return result;         }     } }