I noticed this issue in our app and also on your demo site:
http://demos.telerik.com/silverlight/#Chart/DrillDown

Just try to move the mouse into the tooltip content.  You will notice that the content/popup disappears before you can get over to it.

In our case the tooltip content has some interactive content - we need to be able to get into the content to access controls, etc., without having it disappear.

I did not see any obvious properties I could set to delay the closing of the tooltip control, hopefully I missed something?

Hello Mark,

Currently, the tooltips are repositioned relative to the mouse position, i.e. it is not possible to hover them at all. We will consider extending their functionality.

Best,
Evtim
the Telerik team

Any workaround?

I tried setting the tooltip Margin so that the mouse pointer would be inside the tooltip when it popped up, which worked with some success (not perfect).  However, as soon as the mouse is moved it disappears again.

It seems to me this would be a pretty desirable feature - the chart to display data, a control (tooltip) to edit it and see the adjustment.

Hi Mark,

Currently there is no way to work around the issue because of the way tooltips are implemented. We need to redesign their functionality in order to enable such scenarios.

All the best,
Evtim
the Telerik team

Hello
What about now in 2011, latest version

:)

Hi MB,

Unfortunately tooltip interactive actions are not supported in the latest official version as well -- currently we cannot commit a specific timeframe for the availability of this feature.


Best wishes,
Giuseppe
the Telerik team

We have implemented this to get our Bars to change colors based on their status.

The second style, PART_CanvasContainer was a second attempt to deal with the mouse_enter issues.  As you can see we have added MouseEnter/Exit events to both of these but they are completely ignored....   Can you please advise on how I can get mouse in / mouse out events per bar?

                <Style x:Name="CustomStyle" TargetType="telerik:Bar">
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="telerik:Bar">
                                <Grid>
                                    <Rectangle x:Name="PART_DefiningGeometry"  
                                               RadiusX="5"  
                                               RadiusY="5"  
                                               StrokeThickness="2" 
                                               Fill="{Binding DataItem.StatusReturningColorBrush}"  MouseEnter="content_MouseEnter" MouseLeave="content_MouseLeave" />
                                   
                                </Grid>
                                
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="telerik:Bar">
                                <Canvas x:Name="PART_CanvasContainer" Opacity="0" MouseEnter="content_MouseEnter" MouseLeave="content_MouseLeave">
                                </Canvas>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>

Hello,

To see more information on a similar setup, please refer to the following forum thread:

MouseEnter MouseLeave for each/individual Bar

I hope this helps.

Kind regards,
the Telerik team

Hello
What about now in 2012, latest version ??

Hello Mark,

Please accept my sincere apologies for the delayed reply.

Unfortunately interactive tooltips are still unavailable in RadChart. What I can suggest is to use ContextMenu instead as shown in this example.

In RadChartView we offer trackball behavior, which you can try to customize to fit your needs. Please check the bottom left chart on this example.

All the best,
Sia
the Telerik team