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POAjax Form submission in Google App Engine with jQuery
 

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    <p>could not figure out why it is not working:</p> <p>i need to send request to server, generate some fragment of html in python with meanCal method, and then want that fragment embedded into submitting html file using calculation method and dynamically shows in dyContent div. all the processes are done by single click on submit button in a form. </p> <p>any suggestions??? thanks in advance.</p> <p><strong>the submitting html:</strong></p> <pre><code>&lt;div id="dyContent" style="height: 200px;"&gt; waiting for user... {{ mgs }} &lt;/div&gt; &lt;div id="leturetext"&gt; &lt;form id="mean" method="post" action="/calculation"&gt; &lt;select name="meanselect"&gt; &lt;option value=10&gt;example&lt;/option&gt; &lt;option value=11&gt;exercise&lt;/option&gt; &lt;/select&gt; &lt;input type="button" name="btnMean" value="Check Results" /&gt; &lt;/form&gt; &lt;/div&gt; &lt;script type="text/javascript"&gt; $(document).ready(function() { //$("#btnMean").live("click", function() { $("#mean").submit(function(){ $.ajax({ type: "POST", cache: false, url: "/meanCal", success: function(html) { $("#dyContent").html(html); } }); return false; }); }); &lt;/script&gt; </code></pre> <p><strong>python:</strong></p> <pre><code>class MainHandler(webapp.RequestHandler): def get(self): path = self.request.path if doRender(self, path): return doRender(self,'index.htm') class calculationHandler(webapp.RequestHandler): def post(self): doRender(self, 'Diagnostic_stats.htm', {'mgs' : "refreshed.", }) def get(self): doRender(self, 'Diagnostic_stats.htm') class meanHandler(webapp.RequestHandler): def get(self): global GL index = self.request.get('meanselect'.value) if (index == 10): allData = GL.exampleData dataString = ','.join(map(str, allData)) dataMean = (str)(stats.lmean(allData)) doRender(self, 'Result.htm', { 'dataIn' : dataString, 'MEAN' : "Example Mean is: " + dataMean, }) return else: allData = GL.exerciseData dataString = ','.join(map(str, allData)) dataMean = (str)(stats.lmean(allData)) doRender(self, 'Result.htm', { 'dataIn' : dataString, 'MEAN' : "Exercise Mean is: " + dataMean, }) def main(): global GL GL = GlobalVariables() application = webapp.WSGIApplication( [('/calculation', calculationHandler), ('/meanCal', meanHandler), ('.*', MainHandler), ], debug=True) wsgiref.handlers.CGIHandler().run(application) if __name__ == '__main__': main() </code></pre>
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    1. COCan you please explain exactly what is not working? Is it not going through your request handler? Is the returned result not correct?
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    2. COwhen i click the submit button, the ajax should display a picture for me with the calculated results, but for some reason, the whole page refresh, but the picture did not show.
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