javascript - Why does my Dojo Pie chart disappear when i call updateSeries after an Ajax call? -


i trying update dojo pie chart using updateseries method. invoke method after performing ajax call updated javascript array data.

here javascript:

var eventbyreasonsdata = .... //gets populated on jsp page compile   var theme = dojox.charting.themes.julie;  var eventreasonschart = null;   function makeeventsbyreason() {      var dc = dojox.charting;     eventreasonschart = new dc.chart2d("eventsbyreasonchart");     eventreasonschart.settheme( theme ).addplot("default", {         type: "pie",         font: "normal normal 8pt tahoma",         fontcolor: "black",         labeloffset: -20,         radius: 100      }).addseries("eventseries", eventbyreasonsdata );      var anim_a = new dc.action2d.moveslice(eventreasonschart, "default");      var anim_b = new dc.action2d.highlight(eventreasonschart, "default");      var anim_c = new dc.action2d.tooltip(eventreasonschart, "default");      eventreasonschart.render();   }

here html:

        <div id="eventsbyreasonchart" ></div>

and here javascript making ajax call:

     new ajax.request( url, {         method: 'post',         parameters: params,         oncomplete: function(response) {               if( response.responsetext != "empty" )             {                 var chart = eventreasonschart;                  eventbyreasonsdata = response.responsetext;                  chart.updateseries( "eventseries", eventbyreasonsdata );                  chart.render();                                                              }          }     });

lastly, here how data formatted when being sent chart:

[{ y:48 },{ y:1 },{ y:1 },{ y:14 },{ y:7 },{ y:3 },{ y:8 }]

when chart drawn, cool, no problems. after making ajax call, receive new data, update call made , chart disappears. no errors can see on console.

any ideas?

i suspect eventbyreasonsdata string, when updateseries() expects array. can use dojo.fromjson() convert string array:

chart.updateseries( "eventseries", dojo.fromjson(eventbyreasonsdata) );

Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc...
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use...
Read more