Applying validation rules
Validation rules can be applied to elements to alert users when they have entered incorrect information. You can apply validation rules to validate:
email addresses
numbers
URLs
website addresses
phone numbers
regular expressions.
For example, the following element has a phone number validation that alerts the user when they do not enter a valid phone number.
To apply a validation rule:
Click
.
Select either:
• Text input
• Text areaClick
. See Online form builder - Properties tab.
The Properties tab is displayed.Select a validation option from the Validation drop-down list.
The validation rule is applied to the selected element.
Tip: You can preview the validation by clickingand typing non-conforming content into the field. For example, text into a Mobile number field..gif)

Repeat steps 2 through 4 to add additional validation rules.
Click
.