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Dimension Class

A dimension that is a DataItem whose values are used to categorize data.

Namespace: DevExpress.DashboardCommon

Assembly: DevExpress.Dashboard.v21.2.Core.dll

Declaration

public class Dimension :
    DataItem

Remarks

The Dimension is used to provide discrete categorical information. These values can be of any type - string, date-time or numeric. In any case, the dashboard does not summarize the dimension values, but groups identical values. You can perform grouping, sorting, or display the top values for the dimension values. In contrast to dimensions, a Measure is used to summarize data against grouped dimension values.

To learn more about dimensions and measures, see Measures and Dimensions.

Example

This example demonstrates how to combine filter elements in a group and bind them to data in code.

win-dashboard-combine-dashboard-items-in-group

The dashboard contains the following filter items combined in a group:

The group serve as a master filter for the Chart dashboard item.

View Example: How to Group Filter Elements and Bind to Data at Runtime

using DevExpress.DashboardCommon;
using DevExpress.DataAccess.ConnectionParameters;
using DevExpress.DataAccess.Sql;
using DevExpress.XtraEditors;
using System;

namespace Dashboard_FilterElements_and_Groups {
    public partial class Form1 : XtraForm {
        public Form1() {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e) {
            DashboardSqlDataSource dataSource = CreateDataSource();
            dashboardViewer1.Dashboard = CreateDashboard(dataSource);
            dashboardViewer1.SetMasterFilter("comboBoxDashboardItem1", "Internet Explorer");
        }

        private static DashboardSqlDataSource CreateDataSource() {
            DashboardSqlDataSource dataSource = new DashboardSqlDataSource();
            dataSource.ConnectionParameters =
                new XmlFileConnectionParameters(@"..\..\Data\WebsiteStatisticsData.xml");
            SelectQuery selectQuery = SelectQueryFluentBuilder
                .AddTable("Data")
                .SelectColumns("Browser", "BrowserDetails", "Date", "Count")
                .Build("Statistics");
            dataSource.Queries.Add(selectQuery);
            return dataSource;
        }

        private static Dashboard CreateDashboard(DashboardSqlDataSource dataSource) {
            Dashboard dashboard1 = new Dashboard();
            dashboard1.DataSources.Add(dataSource);

            ComboBoxDashboardItem comboBox1 = new ComboBoxDashboardItem() {
                Name = "Browser",
                DataSource = dataSource,
                DataMember = "Statistics",
                ComboBoxType = ComboBoxDashboardItemType.Checked
            };
            comboBox1.FilterDimensions.Add(new Dimension("Browser"));

            ListBoxDashboardItem listBox1 = new ListBoxDashboardItem() {
                Name = "Browser Version",
                DataSource = dataSource,
                DataMember = "Statistics"
            };
            listBox1.FilterDimensions.Add(new Dimension("BrowserDetails"));
            listBox1.InteractivityOptions.IgnoreMasterFilters = false;

            TreeViewDashboardItem treeView1 = new TreeViewDashboardItem() {
                Name = "Date",
                DataSource = dataSource,
                DataMember = "Statistics",
                AutoExpandNodes = true
            };
            treeView1.FilterDimensions.AddRange(new Dimension("Date", DateTimeGroupInterval.Year),
                new Dimension("Date", DateTimeGroupInterval.Quarter));

            DashboardItemGroup group1 = new DashboardItemGroup() {
                Name = "Filters"
            };
            group1.InteractivityOptions.IsMasterFilter = true;
            dashboard1.Groups.Add(group1);
            group1.AddRange(comboBox1, treeView1, listBox1);

            ChartDashboardItem chart1 = new ChartDashboardItem() {
                Name = "Browser Statistics",
                DataSource = dataSource,
                DataMember = "Statistics",
            };
            chart1.Arguments.Add(new Dimension("Date", DateTimeGroupInterval.MonthYear));
            chart1.SeriesDimensions.AddRange(new Dimension("Browser"), new Dimension("BrowserDetails"));
            chart1.Panes.Add(new ChartPane());
            SimpleSeries salesAmountSeries = new SimpleSeries(SimpleSeriesType.SplineArea);
            salesAmountSeries.Value = new Measure("Count");
            chart1.Panes[0].Series.Add(salesAmountSeries);
            dashboard1.Items.Add(chart1);

            return dashboard1;
        }
    }
}

The following code snippets (auto-collected from DevExpress Examples) contain references to the Dimension class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

Inheritance

See Also