I am having trouble having highcharts bind to a dynamic chartConfig using this approach
where charts is an object in the controller housing multiple charts by the keys "{{moment}}_a".
When the page resolves, the highcharts has the right output, for e.g.
config="charts['ABC-DEF_a']" but the chart and data don't display. If I manually type the same config="charts['ABC-DEF_a']" into the page, it displays fine.
How do I ensure that highcharts binds to the variable referenced?
Thanks
If you use for example config="chartConfig" you edit it via controller by $scope.chartConfig = {}; and after any dynamic change you must call $scope.$apply();
Related
How to find and replace a specific text on a html page using AngularJs
That text is on a third party component so the id and the class is keeping changing. What I can reference is the text itself that I want to change.
That specific text on the html page is no class or id or any ng-tag around it.
I am not a angularjs developer and the page was built on asp.net mvc with the view (cshtml) using angularjs version1.
Is there a way in angularjs to find and place the text like the way in javascript:
document.body.innerHTML = document.body.innerHTML.replace('old_text', 'new_text');
Thank you!
In angularjs each application state(page) has a controller. The logic to access the Dom should placed in said controller.
To manipulate the DOM please see this answer
In Angular world, it's called data binding. Here are the official docs on data binding.
Here is the working DEMO of data being updated in time. First, html displays "Initial Text" and in 5 seconds it's changed to "New Text".
What was done for this demo:
An angular component was created with a dedicated variable $scope.text that holds text values that will change in time.
Then, this variable is used in the HTML markup, like this: {{ text }}.
Angular handles the HTML re-rendering automatically for you, so when the value of $scope.text is modified in the component, Angular forces re-rendering of the html in the browser
UPD another example with Angular two-way binding: DEMO.
Here user can change $scope.text value in the input field, which automatically changes its value in the controller. Try to edit the input field and you will see how it instantly updates in the header above the input field.
I have two tabs in my dialog.First Tab is having a pathfield and second tab is having a multifield inside that only one widget of xtype selection(drop down) exist.I want to send the pathfield path as a query parameter to a servlet and want to populate json in the list.
I have done this by having a listener under drop-down widget.
i am using property render and its value:
function(){
var dialog = this.findParentByType('dialog');
var path=dialog.findById('path');
$.getJSON('/bin/demo?path=' + path.value,
function(jsonData){
this.setOptions(jsonData);
this.doLayout(false,false);
}
);
}
My JSON response is coming but setOptions is not a function error is coming.
Please Help!!!!
this value depends upon the context where you are making use of this.
I believe that is the problem here. this value would differ inside and outside the $.getJSON. You would need to bind the value of this object for the function.
The link has given the example also. Either you need to store reference of this to a variable or bind this reference using the bind method. Refer this for more details
I am new to angularjs, trying to create my first directive. I am creating a directive to load Charts.js2.0(beta) into my application.
I have 2 views managed by angular-route, both html view has ng-included a html page that contains only charts-element.
The problem is the first page properly draws the chart, when i go to other view the charts div is loaded but charts is not re-drawn. And now if i go back to first view its blank.
Link to Plunker
What i am doing wrong? Is there any issue with my directive?
Thanks in advance.
There appears to be an issue with the Charts library modifying the existing object on the root scope, and thereby ignoring it forever afterward. I can't really trace down what is doing it, but here's a fix for you: http://plnkr.co/edit/jDQFV62FSeXAQJ6o7jE8
Here is what you had
scope.$watch('config', function(newVal) {
if(angular.isDefined(newVal)) {
if(charts) {
charts.destroy();
}
var ctx = element[0].getContext("2d");
charts = new Chart(ctx, scope.config);
//scope.$emit('create', charts);
}
});
Above, you can see that you're passing scope.config directly into the charts method. That appears to be modifying the data somehow, and since that's passed by reference, you're actually modifying $rootScope.sales.charts. If you copy that object and use it locally like below, you don't have that problem.
Here's how I fixed it.
scope.$watch('config', function(newVal) {
var config = angular.copy(scope.config);
if(angular.isDefined(newVal)) {
if(charts) {
charts.destroy();
}
var ctx = element[0].getContext("2d");
charts = new Chart(ctx, config);
//scope.$emit('create', charts);
}
});
You can see that instead of passing that object directly in, we use angular to make a copy (angular.copy()), and that's the object we pass in.
I think it has relation with the id of the canvas where you are drawing. I've had this problem too amd it was because i was using the same id for the canvas of two graphs in different views. Be sure that those ids are different and that the javasrcipt of each graph is in the controller of each view or in each view itself.
Taking a look at your pluker I see that you are using the same html for the graph and I guess that when angular moves from one of your views to the other thinks that the graph is already drawn. Differentiating two graphs will solve the problem. I don't know of there is any other approach that allows using the same html for the canvas of the graph.
Hope it helps you solve it
I want to have a column chart in my angular app that could be drilled down to a line chart. I think the main problem is to be able to handle click event on each column that I could not find it highchart nor angular-chart. Can you tell me a way to construct such thing?
ZingChart has an Angular directive that works well with your use case. You can use the directive with ZingChart's internal events to bind to just about anything on the chart :
zingchart.node_click = function(p) {
....
}
Demo : http://jsfiddle.net/mschultz/ck84wjce/
Angular Directive: https://github.com/zingchart/ZingChart-AngularJS
Docs : http://www.zingchart.com/docs/api/api-events/
It can also perform drilldowns fairly easily across different types of charts: http://www.zingchart.com/blog/2014/09/02/chart-drilldown-interactive-feature/
If you need any help, feel free to reach out - I work for the ZingChart team!
Check out this page for an example on Angular Drill Down chart using CanvasJS Angular Chart. It also includes angular source code or download angular sample from download page.
Check this StackBlitz for a simple example.
I would like to use nvd3 chart library in my AngularJS app by using angularjs-nvd3-directives
Is there a way to export any given nvd3 chart to any of the graphics file formats?
Please post a code sample for detailed help
To capture your chart to a file for use
Register a callback in on-ready in your nvd3 directive. This callback receives a 2 parameters as show below
$scope.callback = function(scope,element){
$scope.myChartScope = scope;
}
This $scope.myChartScope should contain a reference to your svg element, console.log it to see its contents
In your options object for the line chart, there is a dispatch object which has an attribute called renderEnd that gets called when your chart is fully drawn. In this renderEnd you can then access your $scope.myChartScope.svg
and then do what you want with it.
You can use a library like https://github.com/exupero/saveSvgAsPng to save your SVG to an image file
All done on the client side
I hope this answers your question!