Skip to main content

IDashboardStateService Interface

When implemented by a class, provides a service used to manage a dashboard state.

Namespace: DevExpress.DashboardWeb

Assembly: DevExpress.Dashboard.v23.1.Web.dll

NuGet Package: DevExpress.Web.Dashboard.Common

Declaration

public interface IDashboardStateService

Remarks

Use the DashboardConfigurator.SetDashboardStateService method to specify the service used to manage a dashboard state.

To learn more about a dashboard state, see Manage Dashboard State.

Example

The sample illustrates how to specify a dashboard state (such as master filter or parameter values) in code and how to apply this state when loading a dashboard for the first time. In this example, the DashboardState object holds the required dashboard state. The DashboardConfigurator.SetDashboardStateService method is used to apply the specified dashboard state when loading a dashboard.

View Example: ASP.NET MVC

Create a custom dashboard state service and define the dashboard state:

using DevExpress.DashboardCommon;
using DevExpress.DashboardWeb;
using System;
using System.Collections.Generic;

namespace MvcDashboard_DefaultDashboardState {
    public class CustomDashboardStateService : IDashboardStateService {
        public DashboardState GetState(string dashboardId, System.Xml.Linq.XDocument dashboard) {
            DashboardState dashboardState = new DashboardState();

            DashboardParameterState parameterState =
                new DashboardParameterState("countryParameter", "USA", typeof(string));

            DashboardItemState gridFilterState = new DashboardItemState("gridDashboardItem1");
            gridFilterState.MasterFilterValues.AddRange(new List<object[]>() {
                new string[1] { "Andrew Fuller" },
                new string[1] { "Laura Callahan" }
            }
            );

            DashboardItemState treemapDrilldownState = new DashboardItemState("treemapDashboardItem1");
            treemapDrilldownState.DrillDownValues.Add("Beverages");

            DashboardItemState rangeFilterState = new DashboardItemState("rangeFilterDashboardItem1");
            rangeFilterState.RangeFilterState.Selection =
                new RangeFilterSelection(new DateTime(2015, 1, 1), new DateTime(2016, 1, 1));

            dashboardState.Parameters.Add(parameterState);
            dashboardState.Items.AddRange(new List<DashboardItemState>() {
                gridFilterState,
                treemapDrilldownState,
                rangeFilterState }
            );
            return dashboardState;
        }
    }
}

Call the DashboardConfigurator.SetDashboardStateService(IDashboardStateService) method to apply the created dashboard state service:

using DevExpress.DashboardWeb;
using DevExpress.DashboardWeb.Mvc;
using System.Web.Routing;

namespace MvcDashboard_DefaultDashboardState {
    public static class DashboardConfig {
        public static void RegisterService(RouteCollection routes) {
            routes.MapDashboardRoute("dashboardControl","DefaultDashboard");
            DashboardFileStorage dashboardFileStorage = new DashboardFileStorage("~/App_Data/Dashboards");
            DashboardConfigurator.Default.SetDashboardStorage(dashboardFileStorage);

            DashboardConfigurator.Default.SetDashboardStateService(new CustomDashboardStateService());
        }
    }
}
See Also