UI/MenuSystem/Pages/PlayDemoScenePage.razor
@using Sandbox.UI
@using Sandbox

@inherits Panel
@namespace Opium.UI

<root class="body column">
</root>

@code
{
    protected override void OnAfterTreeRender( bool firstTime )
    {
        base.OnAfterTreeRender( firstTime );

        AsyncTest();
    }

    async void AsyncTest()
    {
        await GameTask.DelaySeconds( 2.5f );

        MainMenuPanel.Current.Menu.Navigate( "/play/demo" );
    }
}