Integer Validator, Max Digits v. Max Length

[Joe Blake]

I have a field in the tutorial, CDS-CD_ID with the following parameters in Properties:

Field Type: Integer
Validator: Max Digits 10
Max Length 17

Is there a conflict here?

Which one takes precedence?

[Jon]

The two validators work slightly differently:

Max length: sets the length of the input field and restricts the number of characters you can enter.
Max Digits: checks the input when you submit the form and issues a message

So with these settings you could type up to 17 characters but only inputs up to 10 digits will be posted.

[Joe Blake]

Example 1

Max Length=3
Max Digits=5

You are allowed to enter 12345
What will be shown is 12345
What will be posted to db 123

Example 2:

Max Length=5
Max Digits=3

You are allowed to enter 123
What will be shown is 123
What will be posted to db 123

[Jon]

Well that's a surprise and not what I was expecting. Example 2 sounds OK but example 1 doesn't. If I try this on my system, I can only enter 3 characters - but my starting point is an empty input box. If you start off with a value which is longer than max length e.g. you've loaded it from a database, the browser will display it, but then it won't let you submit it. I think that might be what you're seeing. Also if you remove the characters in the browser, you will then only be able to enter 3 characters (max length).