AppearanceAttribute(String, AppearanceItemType, String) Constructor

Creates a new instance of the AppearanceAttribute using the specified parameters.

Namespace: DevExpress.ExpressApp.ConditionalAppearance

Assembly: DevExpress.Persistent.Base.v18.2.dll


public AppearanceAttribute(
    string id,
    AppearanceItemType appearanceItemType,
    string criteria
Public Sub New(
    id As String,
    appearanceItemType As AppearanceItemType,
    criteria As String


Type Name Description
String id

A string that is the unique identifier for the appearance rule created using the current attribute instance.

AppearanceItemType appearanceItemType

An AppearanceItemType enumeration value specifying the type of UI elements affected by the conditional appearance rule that is created using the current attribute instance.

String criteria

A string that is the criterion for activation of the rule created using the current attribute instance.


This constructor sets the following attribute properties:

The remaining properties can be specified using the constructor's named parameters.

To learn how to define a rule using the Appearance attribute, refer to the Declare Conditional Appearance Rules in Code topic.

See Also