Hello,

Did you resolve your issue?

Valerie

Hello,

Another approach is to edit the default template of the nodes and add the tooltip through XAML code:

<Style TargetType="ig:TreemapNode">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType=" ig:TreemapNode">
                <Border BorderThickness="{TemplateBinding BorderThickness}"
                        Background="{TemplateBinding Fill}"
                        CornerRadius="{TemplateBinding CornerRadius}"
                        BorderBrush="{TemplateBinding BorderBrush}">

                    <!--######################-->
                    <ToolTipService.ToolTip>
                        <ToolTip DataContext="{TemplateBinding DataContext}">
                            <Grid>
                                <!--Content-->
                            </Grid>
                        </ToolTip>
                    </ToolTipService.ToolTip>
                    <!--######################-->

                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="*" />
                        </Grid.RowDefinitions>
                        <TextBlock Text="{TemplateBinding Text}"
                                   HorizontalAlignment="Center" />
                        <ig:NodesPanel x:Name="NodesPanel"
                                       Grid.Row="1" />
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>