Hi,
*Overall Problem:* I have year-wise data in different JSON files. For each
JSON file, I generate 3 charts that are displayed on the webpage. Now the
user should be able to select a different year, and the charts should
update based on that particular year's data.
*What I have Done:* I wrote a function called initialize_charts() which
parses the given JSON, prepares data as per google chart requirements and
draws those charts. I am calling this function from
google.setOnLoadCallback. (as of now I have hardcoded the json file name).
*Main Issue:* Now, I am not sure how do I re-render the charts when the
user selects some other year's JSON file? Somehow, I should be able to
pass-on filename parameter to google.setOnLoadCallback or google.load, such
that my initialize_chart reads this new data and re-renders the charts. But
I am not sure how.
*What I tried:* I tried writing a wrapper function called initialize like
this:
google.setOnLoadCallback(initialize);
function initialize()
{
initialize_charts("year1.json");
}
So, when it loads first, it loads year1.json data. Then for onclick event i
called onclick="initialize_charts("year2.json"). But that doesn't work. I
suppose that the placeholders for the charts (div elements) are replaced by
the charts itself. So, it can't find those placeholders.
I would greatly appreciate any sort of help with this. If you need more
information or my code, I would be happy to provide. I am stuck on this
from the last 2 days :-(
Regards
P
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