DXSerializer.CustomGetSerializableChildren Attached Event

Allows you to save a layout of a control that does not exist in the application’s visual tree.

Namespace: DevExpress.Xpf.Core.Serialization

Assembly: DevExpress.Xpf.Core.v23.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

See AddCustomGetSerializableChildrenHandler(DependencyObject, CustomGetSerializableChildrenEventHandler) and RemoveCustomGetSerializableChildrenHandler(DependencyObject, CustomGetSerializableChildrenEventHandler).

Remarks

Do the following to save controls that do not exist in the visual tree:

1. Handle the CustomGetSerializableChildren event.
2. Add a control that contains the layout you want to save to the CustomGetSerializableChildrenEventArgs.Children collection.

Use Case

If a LayoutPanel contains a UserControl with a GridControl and this panel was not activated, the GridControl does not exist in the visual tree and its properties are not saved (serialized). To save the GridControl properties, add this control to the CustomGetSerializableChildrenEventArgs.Children collection.

MainWindow.xaml.cs

using DevExpress.Utils.Serializing;
using DevExpress.Xpf.Core.Serialization;
using DevExpress.Xpf.Grid;
using DevExpress.Xpf.Core;
using DevExpress.Xpf.Docking;
// ...

public partial class MainWindow : Window {
    public MainWindow() {
        //...
        layoutPanel.AddHandler(DXSerializer.CustomGetSerializableChildrenEvent, new CustomGetSerializableChildrenEventHandler(CustomGetSerializableChildrenEventHandler));
    }
    ///...  
    void OnCreateContentPropertyValue(object sender, XtraCreateContentPropertyValueEventArgs e) {  
        e.Children.Add(grid);
    } 
}

MainWindow.xaml.vb

Imports DevExpress.Utils.Serializing
Imports DevExpress.Xpf.Core.Serialization
Imports DevExpress.Xpf.Grid
Imports DevExpress.Xpf.Core
Imports DevExpress.Xpf.Docking
'...
Public Partial Class MainWindow
    Inherits Window

    Public Sub New()
        '...
        layoutPanel.[AddHandler](DXSerializer.CustomGetSerializableChildrenEvent, New CustomGetSerializableChildrenEventHandler(CustomGetSerializableChildrenEventHandler))
    End Sub
    '...
    Sub OnCreateContentPropertyValue(ByVal sender As Object, ByVal e As XtraCreateContentPropertyValueEventArgs)
        e.Children.Add(grid)
    End Sub
End Class