The Form Validator validators provide the functionality needed for validating a form field. These can be mixed and matched as desired.
Check if value is empty.
Check if value is an integer.
Check if value is a float.
Check if value is included in list.
Check if value is excluded from list.
Check if value is greater than minimum.
Check if value is less than maximum.
Check if value is minimum and maximum.
Check if value length is greater than or equal to minimum.
Check if value length is less than or equal to maximum.
Check if value is an email address.
Check if value is blank.