Form Validation

Form validation ensures user input data validity. FormCreate designer provides rich validation rule types for configuring various validation scenarios.

Note

• Validation Trigger Timing: Supports three trigger methods: blur (blur), change (value change), submit (submit)

• In custom validation, access component and form information through this.rule and this.api to get values from other components during validation.

• When pattern type is string, don't include / symbols before and after, otherwise the regular expression will be invalid.

• In custom validation, the callback function must be executed whether validation succeeds or fails.

Validation Rule Types

FormCreate designer supports the following validation rule types:

Basic Validation Rules

Key	Rule Name	Description
len	Length	Validate string length equals specified value
minLen	Minimum Length	Validate string minimum length
maxLen	Maximum Length	Validate string maximum length
min	Minimum Value	Validate numeric minimum value
max	Maximum Value	Validate numeric maximum value

Format Validation Rules

Key	Rule Name	Description
pattern	Regular Expression	Custom regular expression validation
email	Email Format	Validate email format
url	URL Format	Validate URL format
ip	IP Address	Validate IP address format
phone	Phone Number	Validate phone number format

Character Validation Rules

Key	Rule Name	Description
uppercase	All Uppercase	Validate must be uppercase letters
lowercase	All Lowercase	Validate must be lowercase letters
positive	Positive Number	Validate must be positive number
negative	Negative Number	Validate must be negative number
integer	Integer	Validate must be integer
number	Number	Validate must be number

Advanced Validation Rules

Key	Rule Name	Description
validator	Custom Validation	Custom validation function

These validation configurations let you build a fully functional and user-friendly form validation system.