A set of placeholder characters that force you to enter data in a specific format.
A field that allows you to select more than one value from a list.
Controls the appearance or behavior characteristics for objects and related parts like fields and controls.
Quick Start Field
A predefined set of characteristics and properties that describes a field, including a field name, a data type, and a number of other field properties.
An expression that limits the values that can be entered into the field.
The text in an error message that appears when users violate a validation rule.
A string that contains no characters and is used to indicate that no value exists for a field.