If the end user doesn't enter a phone number then it displays the first error. Or she enters a random string of characters for her e-mail address? View All Messages No new notifications. If an application is expecting one type of data, giving it another type of data may result in an error or even a crash (as you may have already experienced with
If it is blank then it is setting an error message that it is required using the ErrorMessage property. Password Validation in Python Should an elected official feel obligated to vote on an issue based on the majority opinion of his constituents? Phone number or Cell number he will see the respective error message when he leaves the corresponding TextBox empty.