HeatmapControl.Scroll(HeatmapHorizontalScrollingDirection, HeatmapVerticalScrollingDirection) Method

Scrolls the heatmap diagram horizontally or/and vertically at 10 scroll units.

Namespace: DevExpress.XtraCharts.Heatmap

Assembly: DevExpress.XtraCharts.v21.2.UI.dll

NuGet Packages: DevExpress.Win.Charts, DevExpress.Win.Design

Declaration

C#

public void Scroll(
    HeatmapHorizontalScrollingDirection horizontalDirection,
    HeatmapVerticalScrollingDirection verticalDirection
)

VB.NET

Public Sub Scroll(
    horizontalDirection As HeatmapHorizontalScrollingDirection,
    verticalDirection As HeatmapVerticalScrollingDirection
)

Parameters

Name	Type	Description
horizontalDirection	HeatmapHorizontalScrollingDirection	Specifies horizontal scroll direction.
verticalDirection	HeatmapVerticalScrollingDirection	Specifies vertical scroll direction.

Remarks

A scroll unit is calculated as follows:

Enable the following properties to allow users to scroll and zoom a heatmap:

• HeatmapControl.EnableAxisXScrolling
• HeatmapControl.EnableAxisYScrolling
• HeatmapControl.EnableAxisXZooming
• HeatmapControl.EnableAxisYZooming

You can use the HeatmapControl.Scroll, HeatmapControl.ZoomIn and HeatmapControl.ZoomOut methods to scroll and zoom a heatmap programmatically.

After a heatmap is zoomed, you can call the Heatmap Control’s ResetZoom() method to reset the heatmap to the initial state (when the heatmap is not zoomed).