csharp #xaf #controller #ShowCustomStartupNavigationItemController

Posted 2021-05-12

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.SystemModule;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Patomorfologia.Module.Win.Controllers
{

    public class ShowCustomStartupNavigationItemController : WindowController
    {
        private ShowNavigationItemController navigationController;
        public ShowCustomStartupNavigationItemController()
        {
            TargetWindowType = WindowType.Main;
        }
        protected override void OnActivated()
        {
            base.OnActivated();
            navigationController = Frame.GetController<ShowNavigationItemController>();
            if (navigationController != null)
            {
                navigationController.CustomShowNavigationItem += OnCustomShowNavigationItem;
            }
        }
        void OnCustomShowNavigationItem(object sender, CustomShowNavigationItemEventArgs e)
        {
            navigationController.CustomShowNavigationItem -= OnCustomShowNavigationItem;//It is important to unsubscribe from this event immediately.
            ShowViewParameters svp = e.ActionArguments.ShowViewParameters;
            IObjectSpace os = Application.CreateObjectSpace();
            //object theObjectToBeShown = os.FindObject<Contact>(null);
            //DetailView dv = Application.CreateDetailView(os, theObjectToBeShown, true);
            //dv.ViewEditMode = DevExpress.ExpressApp.Editors.ViewEditMode.Edit;
            var dv = Application.CreateDashboardView(os, "DashboardViewTechnik", true);
            if (dv != null)
            {
                svp.CreatedView = dv;
                e.Handled = true;
            }
        }
        protected override void OnDeactivated()
        {
            navigationController.CustomShowNavigationItem -= OnCustomShowNavigationItem;
            base.OnDeactivated();
        }
    }
}