Changing Kendo chart type by model binding in AngularJS -


edit : have reproduced issue in here .. http://dojo.telerik.com/@salmal/ocali

i new kendo ui , using kendo directives in angular app . have requirement change type of the chart using event . let's example when user clicks on button want change chart bar chart pie chart . please refer code below .

controller.js

$scope.chartdata = [         {             "name": "books",             "amount": 200         },         {             "name": "newspapers",             "amount": 320         },         {             "name": "magazines",             "amount": 225         },         {             "name": "shoes",             "amount": 400         }       ];        $scope.update = function () {           $scope.charttype = { type: 'pie' };       };        $scope.charttype = {type: 'bar' };

view.html

    <div class="demo-section k-content wide">     <div>         <h4>hover series</h4>         <div kendo-chart              k-legend="{ position: 'bottom' }"              k-series-defaults="charttype"              k-series="[{ field: 'amount', categoryfield: 'name'}]"              k-data-source="chartdata"              k-rebind="chartdata">         </div>     </div> </div> <button kendo-button ng-click="update()">     update code </button>

in above code update() function executed , assigning "pie" chart type $scope.charttype variable . doesn't reflect in view . means angular model binding isn't working . missing fundamental here ? appreciated ..

i pretty sure $scope.charttype not being watched. need kind of redraw function charts (i think, not familiar kendo ui) or find way update chart. basically, should this: 

$scope.$watch("charttype", function(newvalue, oldvalue) {      if(newvalue !== oldvalue) {          //redraw chart      } }, true);

edit fixed using code in editor. here is: 

<!doctype html> <html> <head>     <meta charset="utf-8"/>     <title>kendo ui snippet</title>      <link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.1.112/styles/kendo.common.min.css"/>     <link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.1.112/styles/kendo.rtl.min.css"/>     <link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.1.112/styles/kendo.silver.min.css"/>     <link rel="stylesheet" href="http://kendo.cdn.telerik.com/2016.1.112/styles/kendo.mobile.all.min.css"/>      <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>     <script src="http://kendo.cdn.telerik.com/2016.1.112/js/angular.min.js"></script>     <script src="http://kendo.cdn.telerik.com/2016.1.112/js/kendo.all.min.js"></script>     <style>     html {         font-size: 14px;         font-family: arial, helvetica, sans-serif;     }     </style> </head> <body>  <div ng-app="app" ng-controller="myctrl">    <div class="demo-section k-content wide">       <div>           <h4>hover series</h4>           <div kendo-chart                k-legend="{ position: 'bottom' }"                k-series-defaults="options.charttype"                k-series="[{ field: 'amount', categoryfield: 'name'}]"                k-data-source="options.datasource"                k-rebind="options">           </div>       </div>   </div>   <button kendo-button ng-click="update()">       update code   </button>   <br/>   <br/>   {{charttype}} </div> <script>  angular.module("app", ["kendo.directives"]).controller("myctrl", function($scope) {     $scope.chartdata = [         {             "name": "books",             "amount": 200         },         {             "name": "newspapers",             "amount": 320         },         {             "name": "magazines",             "amount": 225         },         {             "name": "shoes",             "amount": 400         }       ];        $scope.update = function () {           console.log("doing update");           $scope.charttype = { type: 'bar' };       };        $scope.charttype = { type: 'pie' };        $scope.options = {         charttype: $scope.charttype,         datasource: $scope.chartdata       };        $scope.$watch("charttype", function(newvalue){         $scope.options.charttype = newvalue;       });  }); </script> </body> </html>

if paste in dojo editor, works. need watch, didn't know how handle kendo directive. found answer kendo directive change here. sorry wrong explanation in original answer.

to explain bit: made new variable options. put options on k-rebind, because directive seems watching k-rebind changes. want kendo directive watch data changes , type changes. need watch charttype , when changes, apply changes property of variable bound k-rebind.


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