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Store a hidden ID for each bubble


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I am using a bubble chart. I have a drill down requirement where on clicking each bubble, it will popup the details of the bubble.The details of each bubble can be retrieved from the database only through an ID. How do I associate an ID with each bubble so that on clicking the bubble, this ID gets passed to the target URL as a query string parameter?

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I created a little sample web application that demonstrates DrillDown on a Bubble chart. I basically store the ID (employee name on my sample) in the Tag of the points. Then I use that tag to create a Link for every point (using Query Strings). Note that the drilldown will require a PostBack. The newest version of Chart FX (Chart FX 7) has integrated Ajax features that would allow for the drilldown to happen without a PostBack.

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