Server Data Validator "On the fly" - Examples
Example 1
Try to add a new username.
The username must be unique in the list of taken usernames.
The validation is made on server side, without reloading the page.

Username:
Please enter an unique username.
      Allowed characters are letters, numbers, _ and -.



The username is correct.
Already taken usernames:
  • John
  • David
  • Tim
  • Sheldon
  • Kim


Example 2
When focus moves out from the input field, data is validated on server side and
error is shown in red color below the input field, without reloading the page.


Name:
Please enter a valid name. Allowed characters are letters, numbers, _ and -.
Phone: * Phone number format is: (###) ###-####
  Please enter a phone number in the format:(###) ###-####




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