char only domain name expression for email

Question

I want char only domain name expression for email,dont want allow digits and spl chars in domain name.
eg:
[email protected]

not like these
[email protected]
[email protected]
[email protected]
[email protected]

Joginder Banger · Answer

[a-z][a-zA-Z0-9]+@[a-zA-Z]+\.[a-zA-Z]{2,4}$ try this link https://dotnetfiddle.net/4wgpJQ

Joginder Banger · Answer

Thanks Dawood Abbas.....

Joginder Banger · Answer

oh sorry change some in expression "^[a-zA-Z-]+@[a-zA-Z]+\.[a-zA-Z]{2,4}" i enter only capital condition but you are enter the small letter also.

Joginder Banger · Answer

have a look this code may be your problem solve. public class program { public bool emailcheck(string emailid) { bool temp = false; Regex reg = new Regex(@"^[A-Z-]+@[A-Z]+\.[A-Z]{2,4}$", RegexOptions.IgnoreCase); if (reg.IsMatch(emailid)) temp = true; return temp; } // empcode,empname,dob,dept,bloodgroup public static void Main(string[] args) { program obj = new program(); Console.WriteLine( obj.emailcheck("jogi@gmail.com")); //true Console.WriteLine(obj.emailcheck("jogi1@gmail.com")); //false Console.WriteLine(obj.emailcheck("jogi!@gmail.com")); //false Console.WriteLine(obj.emailcheck("jogi@g%mail.com")); false Console.WriteLine(obj.emailcheck("1jogi@gmail.com")); false } } check online https://dotnetfiddle.net/4wgpJQ

Azaad Abbas · Answer

Hi M.r Joginder Banger , can u plz some more expressions provide me,I tried from searching on google. 1) Phone like (country code)(10 dgits) eg:+919000000000 if miss country code then error message display 'plz provide country code' and othervise display 'invalid no' 2) Marks like 0-100 digits can only enter..not above 100 like 101...200.... 3) AcademicYear like yyyy-yyyy 4) Tax 5) Shift 6) fax like +(country code)-(area code)-(fax number) for example: +1-212-9876543 and with error message,if miss '-' then show 'missing '-'', if missing '+' then show 'missing '+''. at least cant find country code and area code? if miss country code then display 'plz provide country code' if miss area code then display 'plz provide area code'?

Dawood Abbas · Answer

very very thank full to u too for solve my problem.

Dawood Abbas · Answer

oh sorry I mean can allow digits after name but not start with digits dawood507@example.com

Dawood Abbas · Answer

working there but not working in ' RegularExpressionValidator' in aspx page below i attached that page.

Joginder Banger · Answer

check this link ...it's working https://dotnetfiddle.net/4wgpJQ

Dawood Abbas · Answer

^[A-Z-]+@[A-Z]+\.[A-Z] {2,4}$ " errormessage="Invalid Email Address" /> not working for actual email dawood@example.com

char only domain name expression for email

Answers (10)