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CustomizeDashboardTitleEventArgs Class

Provides data for the CustomizeDashboardTitle and CustomizeDashboardTitle events.

Namespace: DevExpress.DashboardWin

Assembly: DevExpress.Dashboard.v19.1.Win.dll

Declaration

public class CustomizeDashboardTitleEventArgs :
    CustomizeDashboardCaptionBaseEventArgs
Public Class CustomizeDashboardTitleEventArgs
    Inherits CustomizeDashboardCaptionBaseEventArgs

Remarks

The CustomizeDashboardTitleEventArgs class allows you to add, remove or modify command buttons, or change the text displayed in the Dashboard Title.

Examples

This example demonstrates how to handle the DashboardViewer events to modify dashboard title and dashboard item captions. You can add or remove command buttons and display a text.

Event Dashboard Element
CustomizeDashboardTitle Dashboard Title
CustomizeDashboardItemCaption Dashboard Item Caption

The dashboard title displays the dimensions and values by which the dashboard data is filtered. You can use a drop-down menu to selectively hide dashboard item captions. Clicking a custom Support button navigates to this example online.

A dashboard item caption displays the item's master filter values. Export buttons are hidden for all dashboard items except the map, and for the entire dashboard, if the displayed data's Category field contains "Bikes".

Note

The complete sample project WinForms Dashboard - How to customize the dashboard title and dashboard item captions is available in the DevExpress Examples repository.

using DevExpress.DashboardCommon;
using DevExpress.DashboardCommon.ViewerData;
using DevExpress.DashboardWin;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;

namespace CustomizeDashboardItemCaption_Viewer_Example
{
    public partial class ViewerForm1 : DevExpress.XtraEditors.XtraForm
    {
        private static bool allowExport = false;

        public ViewerForm1()
        {
            InitializeComponent();
            dashboardViewer.AllowPrintDashboardItems = true;

            dashboardViewer.CustomizeDashboardTitle += DashboardViewer_CustomizeDashboardTitle;
            dashboardViewer.CustomizeDashboardItemCaption += DashboardViewer_CustomizeDashboardItemCaption;

            dashboardViewer.PopupMenuShowing += DashboardViewer_PopupMenuShowing;
            dashboardViewer.MasterFilterSet += DashboardViewer_MasterFilterSet;

            dashboardViewer.UpdateDashboardTitle();
            UpdateDashboardItemCaptions();
        }

        private void DashboardViewer_CustomizeDashboardTitle(object sender, CustomizeDashboardTitleEventArgs e)
        {
            DashboardViewer viewer = (DashboardViewer)sender;

            // Display a string of master filter values.
            string filterText = string.Empty;
            foreach (var item in viewer.Dashboard.Items)
            {
                if (viewer.CanSetMasterFilter(item.ComponentName))
                {
                    var filterValues = viewer.GetCurrentFilterValues(item.ComponentName);
                    filterText += GetFilterText(filterValues);
                }
            }
            DashboardToolbarItem toolbarItem = new DashboardToolbarItem();
            toolbarItem.Caption = "Filter: " + filterText;
            e.Items.Insert(0, toolbarItem);


            // Remove the Export button depending on the static variable.
            if (!allowExport)
            {
                RemoveExportButton(e.Items);
            }

            // Add drop-down menu to show/hide dashboard item captions.
            DashboardToolbarItem toolbarItemRoot = new DashboardToolbarItem();
            toolbarItemRoot.Caption = @"Show/Hide Dashboard Item Captions";
            toolbarItemRoot.SvgImage = svgImageCollection1["title"];
            foreach (var item in viewer.Dashboard.Items)
            {
                DashboardToolbarMenuItem menuItem = new DashboardToolbarMenuItem(item.ShowCaption, item.Name,
                    new Action<DashboardToolbarItemClickEventArgs>((args) =>
                    {
                        item.ShowCaption = !item.ShowCaption;
                    }));
                menuItem.ImageOptions.SvgImage = svgImageCollection1["title"];
                toolbarItemRoot.MenuItems.Add(menuItem);
            }
            e.Items.Insert(0, toolbarItemRoot);


            // Add a button with an image to navigate to this example online.
            DashboardToolbarItem infoLinkItem = new DashboardToolbarItem("",
                new Action<DashboardToolbarItemClickEventArgs>((args) => {
                    System.Diagnostics.Process.Start("https://www.devexpress.com/Support/Center/Example/Details/T630210/");
                }));
            // Note that a raster image is proportionally resized to 24 px height when displayed in the Title area.
            infoLinkItem.SvgImage = svgImageCollection1["support"];
            e.Items.Add(infoLinkItem);
        }

        private void DashboardViewer_CustomizeDashboardItemCaption(object sender, CustomizeDashboardItemCaptionEventArgs e)
        {
            // Remove the Export button depending on the static variable.
            if (!allowExport)
            {
                if (!e.DashboardItemName.Contains("Map"))
                {
                    RemoveExportButton(e.Items);
                }
            }

            // Display filter values.
            DashboardViewer viewer = (DashboardViewer)sender;
            var filterValues = viewer.GetCurrentFilterValues(e.DashboardItemName);
            if (filterValues != null)
                if (filterValues.Count > 0)
                    e.FilterText = string.Format(" ( Filter: {0})", string.Concat(filterValues.Select(
                        axp => string.Format("{0} ", axp.GetAxisPoint(axp.AvailableAxisNames[0]).DisplayText)).ToArray()));

        }

        private void DashboardViewer_PopupMenuShowing(object sender, DashboardPopupMenuShowingEventArgs e)
        {
            // Hide popup menu everywhere except the dashboard title, to hide commands related to the export actions. 
            if (e.DashboardArea == DashboardArea.DashboardItem)
                e.Allow = false;
        }       
        private void DashboardViewer_MasterFilterSet(object sender, MasterFilterSetEventArgs e)
        {
            if (e.DashboardItemName == "listBoxDashboardItem1")
                allowExport = e.SelectedValues.Select(value => value[0].ToString()).Contains("Bikes") ? false : true;
            UpdateDashboardItemCaptions();
            dashboardViewer.UpdateDashboardTitle();
        }
        private string GetFilterText(IList<AxisPointTuple> filterValues)
        {
            string filterText = string.Empty;
            if (filterValues.Count > 0)
            {
                string dimensionName = string.Concat(filterValues.Select(
                    axp => string.Format("{0} ", axp.GetAxisPoint(axp.AvailableAxisNames[0]).Dimension.Name)).Distinct());
                filterText = string.Format(" ({0}:{1})", dimensionName, string.Join(",", filterValues.Select(
                    axp => string.Format(" {0}", axp.GetAxisPoint(axp.AvailableAxisNames[0]).DisplayText)).ToArray()));
            }
            return filterText;
        }
        private void UpdateDashboardItemCaptions()
        {
            foreach (DashboardItem i in dashboardViewer.Dashboard.Items)
            {
                dashboardViewer.UpdateDashboardItemCaption(i.ComponentName);
            }
        }
        private void RemoveExportButton(IList<DashboardToolbarItem> items)
        {
            var exportItem = items.FirstOrDefault(i => i.ButtonType == DashboardButtonType.Export);
            if (exportItem != null)
            {
                items.Remove(exportItem);
            }
        }
    }
}

Inheritance

Object
EventArgs
CustomizeDashboardCaptionBaseEventArgs
CustomizeDashboardTitleEventArgs
See Also