The requested page is not available for the requested platform. You are viewing the content for Default platform.

How to: Access API of Underlying Widgets in the ASP.NET MVC Dashboard Extension

  • 4 min to read

This example demonstrates how to customize client widgets used to visualize data within dashboard items at runtime using ASPxClientDashboard's API.

The following options are changed.

  • Highlighting of the hovered grid row is enabled in the underlying dxDataGrid in the ASPxClientDashboard.ItemWidgetCreated event handler.
  • A standard tooltip that is invoked when an end-user hovers over a chart series point is disabled. You can invoke a tooltip by clicking the required label on the argument axis. The argumentAxisClick event is used for this purpose. Subscription and unsubscription to/from the argumentAxisClick event are performed in the ASPxClientDashboard.ItemWidgetUpdated and ASPxClientDashboard.ItemWidgetUpdating event handlers respectively.
  • A pie legend is shown for the underlying dxPieChart.
using DevExpress.DashboardWeb;
using DevExpress.DashboardWeb.Mvc;
using System;
using System.Web.Mvc;
using System.Web.Routing;

namespace MVCxDashboard_UnderlyingWidgets
{
    public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
            routes.IgnoreRoute("{resource}.ashx/{*pathInfo}");
            routes.MapDashboardRoute();

            routes.MapRoute(
                "Default",
                "{controller}/{action}/{id}",
                new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }

        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
            ModelBinders.Binders.DefaultBinder = new DevExpress.Web.Mvc.DevExpressEditorsBinder();
            DevExpress.Web.ASPxWebControl.CallbackError += Application_Error;

            DashboardConfigurator.Default.SetDashboardStorage(new DashboardFileStorage(@"~/App_Data/"));
        }

        protected void Application_Error(object sender, EventArgs e)
        {
            Exception exception = System.Web.HttpContext.Current.Server.GetLastError();
        }
    }
}