Sorry Frnds, var Query should be global.... bad mistake :( On Jun 29, 5:32 pm, Student <[email protected]> wrote: > I draw diagram with 4 column say D ,A ,B ,C > when i user clicks a button i want the annoted chart to draw the > diagram with the same dataset on column D, A, B only and remove C in > the diagram > How can I do it > I was tyring with the code below but failed > > <html> > <head> > > <script type="text/javascript" src="http://www.google.com/jsapi";></ > script> > <script type="text/javascript"> > > google.load('visualization', '1', {'packages': > ['annotatedtimeline']}); > > google.setOnLoadCallback(init); > > . > function init() { > > // Specify the data source URL. > var query = new google.visualization.Query('MyServlet'); //by > default column D,A,B,C are selected to draw the chart > > // Send the query with a callback function. > query.send(handleQueryResponse); > } > > // Handle the query response. > function handleQueryResponse(response) { > if (response.isError()) { > alert('Error in query: ' + response.getMessage() + ' ' + > response.getDetailedMessage()); > return; > } > > // Draw the visualization. > var data = response.getDataTable(); > var chart = new > google.visualization.AnnotatedTimeLine(document.getElementById('chart_div') ); > chart.draw(data, {scaleType: 'allmaximized' ,displayAnnotations: > true}); > } > > function itemSelect(){ > > query.setQuery('select D,A,B'); /// I want to > select D,A,B column only on button click > > query.send(handleQueryResponse); > > } > > </script> > </head> > <body > > > <div id="chart_div" style='width: 700px; height:240px;'></div> > > <input type="submit" value="see" name="see" onclick="itemSelect()" /> > <--select function to requery > > </body> > </html> > > Can you suggest the best way to do it? > thanks
-- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
