Needle Tooltip

[Alberto]

I'm trying to show a tooltip in the needle in order to show the selected value.

I have this code in the xaml file:

<telerik:RadRadialGauge Name="RadialGaugeDemo" HorizontalAlignment="Left" Margin="961,30,0,0" Grid.Row="1" VerticalAlignment="Top" Height="255" Width="274">
            <telerik:RadialScale Name="scale"
                                     LabelRotationMode="None"
                                     IsInteractive="True"
                                     MajorTickOffset="-0.015*"
                                     MiddleTickOffset="-0.015*"
                                     MinorTickOffset="-0.015*" Min="0" Max="120">

                <telerik:RadialScale.Indicators>

                    <telerik:Needle Name="needle" Value="50"/>
                    <telerik:Pinpoint />
                </telerik:RadialScale.Indicators>
            </telerik:RadialScale>
        </telerik:RadRadialGauge>

And I wanted to add the tooltip format in the code behind file:

needle.TooltipFormat = "{0:F2}";

But when I run the program, it only shows a blank square, as you can see in the image that I have attached.
I think that I am missing something.

I saw this Page and i tried this code:

<telerik:Needle x:Name="needle"
 IsAnimated="True"
 Value="{Binding Value}" TooltipFormat="No: {0}"/>

But it doesn't work either.

Regards,

Alberto Martinez

[Andrey]

Hi Alberto,

The post you reference to is for very old version of the gauge control.
You can find example of the tooltip usage here:

http://demos.telerik.com/silverlight/#Gauge/Customization/Tooltips

Regards,
Andrey Murzov
Telerik