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 | 
 
 
 
 public static bool CheckPhoneNumber(string strPhoneNumber)
 {
 try
 {
 
 if (strPhoneNumber.Length == 14)
 {
 strPhoneNumber.Replace("+86", string.Empty);
 }
 
 string strRegexChinaTelecom = @"^1[3578][01379]\d{8}$";
 Regex regexChinaTelecom = new Regex(strRegexChinaTelecom);
 
 string strRegexChinaMobile = @"^(134[012345678]\d{7}|1[34578][012356789]\d{8})$";
 Regex regexChinaMobile = new Regex(strRegexChinaMobile);
 
 string strRegexChinaUnicom = @"^1[34578][01256]\d{8}$";
 Regex regexChinaUnicom = new Regex(strRegexChinaUnicom);
 
 if (regexChinaTelecom.IsMatch(strPhoneNumber) || regexChinaMobile.IsMatch(strPhoneNumber) || regexChinaUnicom.IsMatch(strPhoneNumber))
 {
 return true;
 }
 else
 {
 return false;
 }
 }
 catch (Exception ex)
 {
 return false;
 }
 }
 
 |