DashboardViewer.DataInspectorFormLoad Event

Occurs before the Data Inspector window displays. Allows you to access the window’s grid controls and change their settings.

Namespace: DevExpress.DashboardWin

Assembly: DevExpress.Dashboard.v23.2.Win.dll

NuGet Package: DevExpress.Win.Dashboard

Declaration

C#

public event DataInspectorFormLoadEventHandler DataInspectorFormLoad

VB.NET

Public Event DataInspectorFormLoad As DataInspectorFormLoadEventHandler

Event Data

The DataInspectorFormLoad event's data class is DataInspectorFormLoadEventArgs. The following properties provide information specific to this event:

Property	Description
AggregatedDataGrid	Provides access to the Grid control that displays aggregated data in the Data Inspector dialog.
AllowExportAggregatedData	Gets or sets whether end users can export aggregated data from the Data Inspector.
AllowExportRawData	Gets or sets whether end users can export raw data from the Data Inspector.
DashboardItemName	Gets the name of the dashboard item whose data is displayed in the Data Inspector window.
RawDataGrid	Provides access to the Grid control that displays raw data in the Data Inspector dialog.

Remarks

Use the DashboardViewer.ShowDataInspector method to invoke the Data Inspector window.

When the Data Inspector window closes, the DashboardViewer.DataInspectorFormClosing event occurs.

Example

This example illustrates how to handle the DashboardViewer.DataInspectorFormLoad and DashboardViewer.DataInspectorFormClosing events to get access to the Grid controls in the Data Inspector window and change the grid settings.

You can modify the grid layout in the Data Inspector dialog. When the dialog closes, it calls the BaseView.SaveLayoutToStream method to save settings. When the dialog opens, the BaseView.RestoreLayoutFromStream method restores the settings.

C#

using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
using DevExpress.DashboardWin;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Views.Grid;

namespace DataInspectorCustomizationExample {
    public partial class Form1 : DevExpress.XtraEditors.XtraForm
    {
        Dictionary<string, Stream> aggregatedGridLayoutDictionary = new Dictionary<string, Stream>();
        Dictionary<string, Stream> rawGridLayoutDictionary = new Dictionary<string, Stream>();
        public Form1() {
            InitializeComponent();
            dashboardViewer1.AllowInspectAggregatedData = true;
            dashboardViewer1.AllowInspectRawData = true;
            dashboardViewer1.DataInspectorFormLoad += DashboardViewer1_DataInspectorFormLoad;
            dashboardViewer1.DataInspectorFormClosing += DashboardViewer1_DataInspectorFormClosing;
        }

        private void DashboardViewer1_DataInspectorFormClosing(object sender, DataInspectorFormClosingEventArgs e) {
            SaveGridLayout(e.DashboardItemName, e.AggregatedGrid.FocusedView, aggregatedGridLayoutDictionary);
            SaveGridLayout(e.DashboardItemName, e.RawGrid.FocusedView, rawGridLayoutDictionary);
        }
        private void DashboardViewer1_DataInspectorFormLoad(object sender, DataInspectorFormLoadEventArgs e) {
            CustomizeGrid(e.AggregatedGrid);
            CustomizeGrid(e.RawGrid);

            RestoreGridLayout(e.DashboardItemName, e.AggregatedGrid.FocusedView, aggregatedGridLayoutDictionary);
            RestoreGridLayout(e.DashboardItemName, e.RawGrid.FocusedView, rawGridLayoutDictionary);
        }
        void CustomizeGrid(GridControl grid) {
            GridView view = grid.MainView as GridView;
            view.OptionsCustomization.AllowGroup = true;
            view.OptionsView.ShowGroupPanel = true;
            view.OptionsBehavior.AutoExpandAllGroups = true;
        }
        void SaveGridLayout(string itemName, BaseView gridView, Dictionary<string, Stream> layouts) {
            MemoryStream str = new MemoryStream();
            gridView.SaveLayoutToStream(str);
            layouts[itemName] = str;
            str.Seek(0, SeekOrigin.Begin);
        }
        void RestoreGridLayout(string itemName, BaseView gridView, Dictionary<string, Stream> layouts) {
            Stream stream = null;
            if(layouts.TryGetValue(itemName, out stream)) {
                gridView.RestoreLayoutFromStream(stream);
                stream.Seek(0, System.IO.SeekOrigin.Begin);
            }
        }
    }
}

VB.NET

using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
using DevExpress.DashboardWin;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Views.Grid;

namespace DataInspectorCustomizationExample {
    public partial class Form1 : DevExpress.XtraEditors.XtraForm
    {
        Dictionary<string, Stream> aggregatedGridLayoutDictionary = new Dictionary<string, Stream>();
        Dictionary<string, Stream> rawGridLayoutDictionary = new Dictionary<string, Stream>();
        public Form1() {
            InitializeComponent();
            dashboardViewer1.AllowInspectAggregatedData = true;
            dashboardViewer1.AllowInspectRawData = true;
            dashboardViewer1.DataInspectorFormLoad += DashboardViewer1_DataInspectorFormLoad;
            dashboardViewer1.DataInspectorFormClosing += DashboardViewer1_DataInspectorFormClosing;
        }

        private void DashboardViewer1_DataInspectorFormClosing(object sender, DataInspectorFormClosingEventArgs e) {
            SaveGridLayout(e.DashboardItemName, e.AggregatedGrid.FocusedView, aggregatedGridLayoutDictionary);
            SaveGridLayout(e.DashboardItemName, e.RawGrid.FocusedView, rawGridLayoutDictionary);
        }
        private void DashboardViewer1_DataInspectorFormLoad(object sender, DataInspectorFormLoadEventArgs e) {
            CustomizeGrid(e.AggregatedGrid);
            CustomizeGrid(e.RawGrid);

            RestoreGridLayout(e.DashboardItemName, e.AggregatedGrid.FocusedView, aggregatedGridLayoutDictionary);
            RestoreGridLayout(e.DashboardItemName, e.RawGrid.FocusedView, rawGridLayoutDictionary);
        }
        void CustomizeGrid(GridControl grid) {
            GridView view = grid.MainView as GridView;
            view.OptionsCustomization.AllowGroup = true;
            view.OptionsView.ShowGroupPanel = true;
            view.OptionsBehavior.AutoExpandAllGroups = true;
        }
        void SaveGridLayout(string itemName, BaseView gridView, Dictionary<string, Stream> layouts) {
            MemoryStream str = new MemoryStream();
            gridView.SaveLayoutToStream(str);
            layouts[itemName] = str;
            str.Seek(0, SeekOrigin.Begin);
        }
        void RestoreGridLayout(string itemName, BaseView gridView, Dictionary<string, Stream> layouts) {
            Stream stream = null;
            if(layouts.TryGetValue(itemName, out stream)) {
                gridView.RestoreLayoutFromStream(stream);
                stream.Seek(0, System.IO.SeekOrigin.Begin);
            }
        }
    }
}

Implements

DataInspectorFormLoad