Hi, guys.
I bind style to BarSeries, here is the code.
<Style TargetType="{x:Type telerik:BarSeries}">
<Setter Property="ShowLabels" Value="True"/>
<Setter Property="TooltipTemplate">
<Setter.Value>
<DataTemplate>
<Border Background="{DynamicResource BrightColor}" Padding="6" TextElement.Foreground="White">
<StackPanel>
<StackPanel Orientation="Horizontal">
<TextBlock Text="Y=" FontWeight="Bold" />
<TextBlock Text="{Binding YValue}" />
</StackPanel>
<StackPanel Orientation="Horizontal">
<TextBlock Text="X=" FontWeight="Bold" />
<TextBlock Text="{Binding XValue}" />
</StackPanel>
</StackPanel>
</Border>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>