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.NET 6.0+

AppearanceAttribute.Enabled Property

Specifies whether to enable UI elements affected by the conditional appearance rule generated from this attribute instance.

Namespace: DevExpress.ExpressApp.ConditionalAppearance

Assembly: DevExpress.Persistent.Base.v24.1.dll


public bool Enabled { get; set; }

Property Value

Type Description

true, if UI elements affected by the conditional appearance rule must be enabled; otherwise, false.


The following UI elements can be made disabled/enabled:

  • Data cells in a GridListEditor and ASPxGridListEditor when switching to the inline editing mode
  • Property Editors that are inherited from the PropertyEditor class.
  • Actions

You can find many examples in the Declare Conditional Appearance Rules in Code topic. See these examples in the Feature Center demo installed with the XAF in the %PUBLIC%\Documents\DevExpress Demos 24.1\Components\XAF\FeatureCenter.NETFramework.XPO folder, or refer to the Feature Center demo online.

The example below demonstrates how to disable the NickName property editor in the Contact Detail View.

using System;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
// ...
public class Contact : BaseObject {
    // ...
    [Appearance("NickNameDisabled", Context = "Contact_DetailView", AppearanceItemType = "ViewItem", Enabled = false)]
    public virtual string NickName { get; set; }

// Make sure that you use options.UseChangeTrackingProxies() in your DbContext settings.
See Also