A validation rule that demands that the validated field match a specified pattern.
To specify the regular expression that the validated field must match, set the rule's pattern configuration option.
Specifies the message that is shown for end-users if the current rule is broken.
You do not have to specify this field. In this instance, a default message will be shown. To include the name of the validated editor into the default validation message as a subject, set the name field of the dxValidator object.
If you assign an empty string to the message field, the message will not be shown.