Edit field - Type: Text - Options tab
Maximum entry length
In this field, you can define
the maximum amount of characters that may be entered. If you leave this
field blank, the maximum of 255 characters will be defined.
The edit field is not suitable for entering more characters.
Use the text area
instead for longer texts. If a user exceeds the maximum number
of characters, an error message will appear.
Restrict entry to the following characters
Here, you can specify which characters may be entered into the field.
Entering other characters into the field will not be accepted.