TabContainerActiveChildNotSetException Class

Occurs when the DockPanel.ActiveChild property of the restored tab container is not specified.

Namespace: DevExpress.XtraBars.Docking

Assembly: DevExpress.XtraBars.v24.1.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#
VB.NET

public class TabContainerActiveChildNotSetException :
    RestoreLayoutException

Public Class TabContainerActiveChildNotSetException
    Inherits RestoreLayoutException

Remarks

Follow the steps below to fix this exception:

Handle the DockManager.RestoreLayoutError event.
Assign a panel from the container to the ActiveChild property.

void dockManager1_RestoreLayoutError(object sender, DevExpress.Utils.Serializing.RestoreLayoutErrorEventArgs e) {
    foreach (var exception in e.Exceptions) {
        if (exception is TabContainerActiveChildNotSetException activeChildException)
            activeChildException.Panel.ActiveChild = activeChildException.Panels[1];
    }
    e.Throw = false;
}