on mouse hover drill down

[Abdulhameed]

I have two charts CountrySalesChart and RegionSalesChart, I would like when mouse hover the countrySalesChart, it updates the RegionSales.

What I tried two approaches
-The firs one I have added a HoverChanged event on the chartArea, however the chartArea includes the whole are not only the chartItems and it raised exceptions and it usually when you move the mouse a bit fast it raise the exception and stops.

-The second approach is by adding a MouseBehavior to each DataItem in CountrySalesChart which is great but I couldn't access the RegionSalesChart to update in the chartItem_MouseEnter events, when I tried to access the chart I get the below error
"An object reference is required for the non-static field"

Any suggestion for a better method to achieve the desired result or an improvement to either of the above method will be highly appreciated.

[Petar Marchev]

Hi,

I have attached a sample Silverlight 5 project that demonstrates how this functionality can be achieved. I have used a pie series but you can easily adopt it to any series you have used.

Hope this is of help. Regards,
Petar Marchev
the Telerik team

[Abdulhameed]

Thanks a lot for your replay,

I tried a similar approach however because of WCF async methods, the data was missed up.
So, I decided to update data on click instead of on hover.