A validation rule that demands the target value be within the specified value range (including the range's end points).
To specify the range that the validated value must match, set the rule's min and max configuration options. Note that the specified range can be on a date-time or numeric scale. To validate a value against a string length, use the stringLength rule.
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.
Indicates whether the rule should be always checked for the target value or only when the target value changes.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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