Esempio n. 1
0
 public async void CheckEmailCorrectness()
 {
     if (Email != null && Email != "")
     {
         string emailPattern = @"^(?("")(""[^""]+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))" +
                               @"(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-z][-\w]*[0-9a-z]*\.)+[a-z0-9]{2,17}))$";
         if (Email.Length > 255)
         {
             EmailError     = "Email should be no longer than 255 characters";
             EmailIsCorrect = false;
         }
         else if (!Regex.IsMatch(Email, emailPattern, RegexOptions.CultureInvariant))
         {
             EmailError     = "Enter a valid email address";
             EmailIsCorrect = false;
         }
         else if (!await serverWorker.TaskCheckEmail(Email))
         {
             EmailError     = "This email is already used";
             EmailIsCorrect = false;
         }
         else
         {
             EmailError     = " ";
             EmailIsCorrect = true;
         }
     }
     else
     {
         EmailError     = "Please, enter your email";
         EmailIsCorrect = false;
     }
 }