Client side onclick event?

[LeighHerbert]

Is it possible to catch a click event on a chart item (point, bar, label) on the client side?

I know how to handle these on the server, but my application uses callbacks and I want to be able to update other page controls based on chart clicks.

Is this possible?

[AndreG]

If you are rendering your chart as .NET, every event can be captured on clientside. The ZoomScrollbar sample uses a lot of clientside events.

http://support.softwarefx.com/FeaturedSamples/ZoomScrollBar.zip

If you are rendering as image, you would have to link the point to js functions, which limits what you can do.

[LeighHerbert]

Are there any examples of how to link the points to JS functions?

[AndreG]

 To link every point of the chart to a JS function called myFunction, passing as parameters the Series and Point that were clicked, here is the code you need.

Link mylink = Chart1.AllSeries.Link;mylink.Url = "Javascript:myFunction(%S,%N)";

Note that the flags used here are the same used to create custom tooltips.  They are all listed on your API, under ToolTipFormat property of the Chart class.

Attached is a sample that demonstrates a drilldown using links to JS functions.

[AndreG]

 Hmmmm... The forums do not like it when I spell out JS... Let me use an image instead of text. Attached is what the sample code above (not project) was supposed to be.

[LeighHerbert]

Andre,

Thank you very much for your reply, this was exactly what I was after.

[AndreG]

 Great! No problem...