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ASPxDashboard.SetInitialDashboardState Event

Allows you to specify the initial dashboard state when loading a dashboard.

Namespace: DevExpress.DashboardWeb

Assembly: DevExpress.Dashboard.v19.1.Web.WebForms.dll

Declaration

public event SetInitialDashboardStateEventHandler SetInitialDashboardState
Public Event SetInitialDashboardState As SetInitialDashboardStateEventHandler

Event Data

The SetInitialDashboardState event handler receives an argument of the SetInitialDashboardStateEventArgs type. The following properties provide information specific to this event.

Property Description
DashboardId Gets the identifier of the loaded dashboard.
DashboardXml Get the XML document containing the definition of the loaded dashboard.
InitialState Gets or sets the initial state of the loaded dashboard.

Remarks

Use the SetInitialDashboardStateEventArgs.InitialState event parameter to specify the initial dashboard state. To learn more about a dashboard state, see Manage Dashboard State.

Note

The SetInitialDashboardState event is not raised if the ASPxDashboard control uses the DashboardConfigurator API.

To clear filters (unselect all values) for a specific item in the SetInitialDashboardState event, assign an empty array of objects to the DashboardItemState.MasterFilterValues property:

protected void ASPxDashboard1_SetInitialDashboardState(object sender, SetInitialDashboardStateEventArgs e) {
    var state = new DashboardState();
    // ...
    var itemState = new DashboardItemState("comboBoxDashboardItem");
    itemState.MasterFilterValues.Add(new object() { });
    state.Items.Add(itemState);
    // ...
    e.InitialState = state;
} 

Examples

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 ASPxDashboard.SetInitialDashboardState event is used to apply the specified dashboard state when loading a dashboard.

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

namespace WebDashboard_ManualDashboardState
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e) {
        }

        protected void ASPxDashboard1_SetInitialDashboardState(object sender, SetInitialDashboardStateEventArgs e) {
            e.InitialState = InitializeDashboardState();
        }

        public DashboardState InitializeDashboardState() {
            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;
        }
    }
}
See Also