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V24.1

HeatmapLabel.TextOrientation Property

Gets or sets the text orientation for heatmap labels.

Namespace: DevExpress.XtraCharts.Heatmap

Assembly: DevExpress.XtraCharts.v24.1.dll

NuGet Package: DevExpress.Charts

Declaration

[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
[XtraSerializableProperty]
public HeatmapTextOrientation TextOrientation { get; set; }

Property Value

Type Description
HeatmapTextOrientation

Specifies text orientation.

Available values:

Name Description
Horizontal

Text is horizontally orientated from left to right.

TopToBottom

Text is vertically orientated from top to bottom.

BottomToTop

Text is vertically orientated from bottom to top.

Example

The following example shows how to configure heatmap cell label settings such as format, font, color, and so on.

A heatmap with customized cell labels.

Use the HeatmapControl.Label property to access label settings:

using DevExpress.Drawing;
using DevExpress.XtraCharts;
using DevExpress.XtraCharts.Heatmap;
using System;
using System.Drawing;
using System.Windows.Forms;

namespace HeatmapMatrixAdapterSample {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();

            HeatmapControl heatmap = new HeatmapControl();
            this.Controls.Add(heatmap);

            heatmap.Dock = DockStyle.Fill;

            HeatmapMatrixAdapter dataAdapter = new HeatmapMatrixAdapter();
            dataAdapter.XArguments = new string[] { "North", "South", "West", "East", "Central" };
            dataAdapter.YArguments = new string[] { "Components", "Clothing", "Bikes", "Accessories" };
            dataAdapter.Values = new double[,] {
                { 21.3, 50.1, 63.2, 64.4, 33.4 },
                { 32.3, 54.4, 81.3, 53.4, 54.9 },
                { 60.3, 49.1, 42.6, 48.4, 65.4 },
                { 45.3, 54.7, 70.3, 66.4, 56.6 }
            };
            heatmap.DataAdapter = dataAdapter;
            Palette palette = new Palette("Custom") { Color.White, Color.SkyBlue, Color.DarkBlue };
            RangeColorProvider colorProvider = new RangeColorProvider() { Palette = palette, ApproximateColors = true };
            colorProvider.RangeStops.Add(new Unit(0, UnitType.Percentage));
            colorProvider.RangeStops.Add(new Unit(20, UnitType.Absolute));
            colorProvider.RangeStops.Add(new Unit(40, UnitType.Absolute));
            colorProvider.RangeStops.Add(new Unit(60, UnitType.Absolute));
            colorProvider.RangeStops.Add(new Unit(90, UnitType.Absolute));
            colorProvider.RangeStops.Add(new Unit(1, UnitType.Percentage));
            dataAdapter.ColorProvider = colorProvider;

            HeatmapLabel label = heatmap.Label;
            label.Visible = true;
            label.Pattern = "{V:f0}";
            label.BackColor = Color.White;
            label.Color = Color.Black;
            label.DXFont = new DXFont("SegoeUI", 10);
            label.TextOrientation = HeatmapTextOrientation.Horizontal;
            label.Border.Visibility = DefaultBoolean.True;
            label.Border.Color = Color.DarkGray;
            label.Border.Thickness = 2;
        }
    }
}
See Also