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V24.1

HeatmapCell Class

Contains heatmap cell arguments and value.

Namespace: DevExpress.Charts.Heatmap

Assembly: DevExpress.Charts.v24.1.Core.dll

NuGet Package: DevExpress.Charts.Core

Declaration

public class HeatmapCell :
    IEquatable<HeatmapCell>

The following members return HeatmapCell objects:

Library Related API Members
Cross-Platform Class Library CustomizeHeatmapToolTipEventArgs.HeatmapCell
HeatmapHighlightedItemChangedEventArgs.HeatmapCell
HeatmapHitInfo.Cell
WPF Controls HeatmapHitInfo.HeatmapCell

Example

This example shows how to use the HeatmapControl.CustomizeHeatmapToolTip event to modify tooltip content based on the cell value for which the tooltip is shown.

A tooltip customized in the CustomizeHeatmapToolTip handler.

Follow the steps below to enable and customize tooltips:

The code below applies a custom format to tooltip text if a heatmap cell value is more than the specified value:

const int ThresholdValue = 50;

public Form1() {
    InitializeComponent();
    // ...
    heatmap.ToolTipEnabled = true;
    heatmap.ToolTipController = new DevExpress.Utils.ToolTipController { AllowHtmlText = true };
    heatmap.CustomizeHeatmapToolTip += OnHeatmapCustomizeHeatmapToolTip;
}

private void OnHeatmapCustomizeHeatmapToolTip(object sender, CustomizeHeatmapToolTipEventArgs e) {
    double cellValue = (double)e.HeatmapCell.ColorValue;
    if (cellValue > ThresholdValue) {
        e.Title = "Sale Info";
        e.Text = $"Total: <color=green>${cellValue}K</color>";
    }
}

Inheritance

Object
HeatmapCell
See Also