Skip to main content
All docs
V24.2

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

HeatmapToolTipOptions.OpenMode Property

Specifies when heatmap tooltips are displayed.

Namespace: DevExpress.Xpf.Charts.Heatmap

Assembly: DevExpress.Xpf.Charts.v24.2.dll

NuGet Package: DevExpress.Wpf.Charts

#Declaration

public ToolTipOpenMode OpenMode { get; set; }

#Property Value

Type Description
ToolTipOpenMode

Specifies an action that a user performs to invoke a cell tooltip.

Available values:

Name Description
OnHover

A tooltip appears when hovering over a particular chart element.

OnClick

A tooltip appears when clicking on a particular chart element.

#Property Paths

You can access this nested property as listed below:

Object Type Path to OpenMode
HeatmapControl
.ToolTipOptions .OpenMode

#Example

The following example shows how to enable tooltips for heatmap cells and configure tooltip options:

Customized tooltip

<Window.Resources>
    <DataTemplate x:Key="tooltipTemplate">
        <StackPanel Orientation="Vertical" Margin="8">
            <Label Foreground="Black" 
                   FontStyle="Italic" 
                   FontSize="14" 
                   Content="{Binding Path=ToolTipText}" />
        </StackPanel>
    </DataTemplate>
</Window.Resources>
<Grid>
    <dxh:HeatmapControl ToolTipEnabled="True" 
                        ToolTipTemplate="{StaticResource ResourceKey=tooltipTemplate}">
        <dxh:HeatmapControl.ToolTipOptions>
            <dxh:HeatmapToolTipOptions ContentMargin="0" 
                                       Pattern="X: {X}&#x0a;Y: {Y}&#x0a;Value: {V}" 
                                       OpenMode="OnHover" 
                                       AutoPopDelay="00:00:03" 
                                       InitialDelay="00:00:00.1" 
                                       CloseOnClick="False"/>
        </dxh:HeatmapControl.ToolTipOptions>
        <!--...-->
    </dxh:HeatmapControl>
</Grid>
See Also