PersistentBase.AfterConstruction() Method

Invoked when the current object is about to be initialized after its creation.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v19.2.dll

Declaration

C#

public virtual void AfterConstruction()

VB.NET

Public Overridable Sub AfterConstruction

Remarks

You can override this method in your PersistentBase descendants to provide custom initialization logic for your persistent objects (see the code example below).

C#

using DevExpress.Xpo;

public class MyDataObject : XPObject {
    public MyDataObject()
        : base() {
        // This constructor is used when an object is loaded from a persistent storage.
        // Do not place any code here.
    }

    public MyDataObject(Session session)
        : base(session) {
        // This constructor is used when an object is loaded from a persistent storage.
        // Do not place any code here.
    }

    public override void AfterConstruction() {
        base.AfterConstruction();
        // Place your initialization code here.
    }
}

The base AfterConstruction method implementation includes only functionality relevant for persistent objects associated with units of work. In essence, the default implementation marks the current object to be saved to a data store if both of the following conditions are met:

• the current object is associated with a unit of work;
• the current object is persistent (see XPTypeInfo.IsPersistent).

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the AfterConstruction() 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#

Reporting_embedded-end-user-report-designer-demonstration-e20017/CS/Contacts/Data/Category.cs#L25

{
    base.AfterConstruction();
    // Place here your initialization code.

XPO_tutorial-2-relations-one-to-many-e4557/CS/XpoTutorial2/MyDataModelCode/Customer.cs#L8

    public Customer(Session session) : base(session) { }
    public override void AfterConstruction() { base.AfterConstruction(); }
}

XPO_how-to-clone-a-persistent-object-e804/CS/ObjectClass.cs#L8

public override void AfterConstruction() {
    base.AfterConstruction();
}

XPO_how-to-get-the-maximum-or-minimum-objects-value-from-a-collection-e468/CS/ConsoleApplication1/Quote.cs#L17

public override void AfterConstruction() {
    base.AfterConstruction();
    // Place here your initialization code.

how-to-implement-an-ifilteredcomponent-interface-e1350/CS/Q200298/Northwind.cs#L29

    public Categories() : base(Session.DefaultSession) { }
    public override void AfterConstruction() { base.AfterConstruction(); }
}

VB.NET

Reporting_embedded-end-user-report-designer-demonstration-e20017/VB/Contacts/Data/Category.vb#L22

Public Overrides Sub AfterConstruction()
    MyBase.AfterConstruction()
    ' Place here your initialization code.

XPO_tutorial-2-relations-one-to-many-e4557/VB/XpoTutorial2/MyDataModelCode/Customer.vb#L10

Public Overrides Sub AfterConstruction()
    MyBase.AfterConstruction()
End Sub

XPO_how-to-clone-a-persistent-object-e804/VB/ObjectClass.vb#L12

Public Overrides Sub AfterConstruction()
    MyBase.AfterConstruction()
End Sub

XPO_how-to-get-the-maximum-or-minimum-objects-value-from-a-collection-e468/VB/ConsoleApplication1/Quote.vb#L19

Public Overrides Sub AfterConstruction()
    MyBase.AfterConstruction()
    ' Place here your initialization code.

how-to-implement-an-ifilteredcomponent-interface-e1350/VB/Q200298/Northwind.vb#L52

Public Overrides Sub AfterConstruction()
    MyBase.AfterConstruction()
End Sub