Masked input and/or regular expression validation.

Questions will display the mask format (if provided) in the right margin so that users are aware of the specific input required.

A tick is displayed when the input is valid for the mask and/or validation expression.

A validation error is displayed on Submit or Next for invalid input.

Properties

Input Mask

Use A for letters and 9 for digits, or a <<tag>> referencing a mask. For example…

• 999
• AA-9999

Validation Expression

A regular expression or a <<tag>> referencing a regular expression. For example…

• [0-9][0-9][0-9]
• [a-Z][a-Z]-[0-9][0-9][0-9][0-9]

For help with regular expressions see https://regex101.com