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Check TextBox value is in Email ID Format in C#.net

Posted By:Narayanan       Posted Date: September 27, 2011    Points: 25    Category: Regular Expressions    URL: http://www.dotnetspark.com  

Here,i give a few lines coding for check the value whether Email ID format or Not..
 

public  static  bool EmailAddressCheck(string emailAddress,int Mode)
        {
            bool functionReturnValue = false;
            if (Mode == 1)
            {
                string pattern = "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]$";
                Match emailAddressMatch = Regex.Match(emailAddress, pattern);
                if (emailAddressMatch.Success)
                {
                    functionReturnValue = true;
                }
                else
                {
                    functionReturnValue = false;
                    MessageBox.Show("This is not a Email Format");
                }
            }
            return functionReturnValue;
            
        }

     

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