Relating two shield UI ASP.NET Charts

I want to create two related Shield UI ASP.NET charts. When the users clicks on the first one, the data on the second one to be changed. I looked at the available events in my Visual Studio, however what i find are events related to the data binding, loading and so on. I also see there is a group of properties- ClientEvents. And for the SeriesClick event i declare the SeriesClickFunction. Which is located in my C# code:

 protected void SeriesClickFunction() { 
    }

However when i run my application in debug mode and put a break on that function, it never gets triggered. Why is that? How could I actually take use of these events?