The requested page is not available for the requested platform. You are viewing the content for Default platform.

TreemapDashboardItem Class

A Treemap dashboard item that allows you to display large amounts of hierarchically structured (tree-structured) data.

Namespace: DevExpress.DashboardCommon

Assembly: DevExpress.Dashboard.v19.2.Core.dll

Declaration

public class TreemapDashboardItem :
    DataDashboardItem,
    IElementContainer
Public Class TreemapDashboardItem
    Inherits DataDashboardItem
    Implements IElementContainer

Remarks

The Treemap dashboard item can be used to visualize data in nested rectangles that are called tiles.

Treemap_Main_Win

The following documentation is available.

Examples

The following example demonstrates how to bind a Treemap dashboard item to data in code.

using DevExpress.DashboardCommon;
using DevExpress.XtraEditors;

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

            Dashboard dashboard = new Dashboard();

            DashboardExtractDataSource dataSource = new DashboardExtractDataSource();
            dataSource.FileName = @"..\..\Data\SalesDataExtract.dat";
            dashboard.DataSources.Add(dataSource);

            TreemapDashboardItem treeMap = new TreemapDashboardItem();
            treeMap.DataSource = dataSource;
            treeMap.Values.Add(new Measure("Sales"));            
            treeMap.Arguments.Add(new Dimension { DataMember = "Product Category", GroupChildValues = true });
            treeMap.Arguments.Add(new Dimension("Product Sub-Category"));
            treeMap.LayoutAlgorithm = DashboardTreemapLayoutAlgorithm.Striped;

            dashboard.Items.Add(treeMap);
            dashboardViewer1.Dashboard = dashboard;
        }
    }
}

Inheritance

Object
DashboardItem
DataDashboardItem
TreemapDashboardItem
See Also