HeatmapToolTipOptions.OpenMode Property

Specifies when heatmap tooltips are displayed.

Namespace : DevExpress.Xpf.Charts.Heatmap

Assembly : DevExpress.Xpf.Charts.v25.2.dll

NuGet Package : DevExpress.Wpf.Charts

Declaration

C#
VB.NET

csharp

public ToolTipOpenMode OpenMode { get; set; }

Public Property OpenMode As ToolTipOpenMode

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:

XAML

xaml

<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>