ModuleBase.CustomizeLogics(CustomLogics) Method

Allows you to override domain logic classes registered for Application Model interfaces.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v24.1.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public virtual void CustomizeLogics(
    CustomLogics customLogics
)

VB.NET

Public Overridable Sub CustomizeLogics(
    customLogics As CustomLogics
)

Parameters

Name	Type	Description
customLogics	CustomLogics	A CustomLogics object exposing methods to manage domain logic classes registered for Application Model interfaces.

Remarks

This method allows you to replace the default domain logic implementations used for the Application Model interfaces with custom ones. For this purpose, a CustomLogics object exposed by the customLogics parameter supplies the CustomLogics.RegisterLogic and CustomLogics.UnregisterLogic methods. The following code snippet illustrates their use. The IModelDetailView interface’s ModelDetailViewDomainLogic is replaced by a custom MyLogic domain logic class. The custom logic class changes the default value of the IModelView.AllowEdit property for all the Detail Views to false.

C#

using DevExpress.ExpressApp.DC;
using DevExpress.ExpressApp.DC.Xpo;
using DevExpress.ExpressApp.Model;
using DevExpress.ExpressApp.Model.DomainLogics;
//...
public sealed partial class MyModule : ModuleBase {
    //...
    public override void CustomizeLogics(CustomLogics customLogics) {
        base.CustomizeLogics(customLogics);
        customLogics.UnregisterLogic(typeof(IModelDetailView), typeof(ModelDetailViewDomainLogic));
        customLogics.RegisterLogic(typeof(IModelDetailView), typeof(MyLogic));        
    }
}
[DomainLogic(typeof(IModelDetailView))]
public static class MyLogic {
    public static bool Get_AllowEdit(IModelDetailView modelView) {
        return false;
    }
}

VB.NET

Imports DevExpress.ExpressApp.DC
Imports DevExpress.ExpressApp.DC.Xpo
Imports DevExpress.ExpressApp.Model
Imports DevExpress.ExpressApp.Model.DomainLogics
'...
Public NotInheritable Partial Class MyModule
    Inherits ModuleBase
    '...
    Public Overrides Sub CustomizeLogics(ByVal customLogics As CustomLogics)
        MyBase.CustomizeLogics(customLogics)
        customLogics.UnregisterLogic(GetType(IModelDetailView), GetType(ModelDetailViewDomainLogic))
        customLogics.RegisterLogic(GetType(IModelDetailView), GetType(MyLogic))
    End Sub
End Class
<DomainLogic(GetType(IModelDetailView))> _
Public NotInheritable Class MyLogic
    Private Sub New()
    End Sub
    Public Shared Function Get_AllowEdit(ByVal modelView As IModelDetailView) As Boolean
        Return False
    End Function
End Class

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CustomizeLogics(CustomLogics) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-how-to-implement-a-custom-attribute-to-customize-the-application-model/CS/DXExample.Module/Module.cs#L28

public override void CustomizeLogics(CustomLogics customLogics) {
    base.CustomizeLogics(customLogics);
    customLogics.RegisterLogic(typeof(IRemovedFromViewModel), typeof(RemovedFromViewInfoLogic));

VB.NET

xaf-how-to-implement-a-custom-attribute-to-customize-the-application-model/VB/DXExample.Module/Module.vb#L30

Public Overrides Sub CustomizeLogics(ByVal customLogics As CustomLogics)
    MyBase.CustomizeLogics(customLogics)
    customLogics.RegisterLogic(GetType(IRemovedFromViewModel), GetType(RemovedFromViewInfoLogic))