I'm new to angular and typescript, so this is probably really basic.
I'm trying to make an angular2 component with a chart (using Chart.js) in the template.
I realize there is a chart directive being developed, that specifically uses Chart.JS, but I would like to understand how to do this, as it will undoubtedly come up in an instance where a directive isn't available.
So far I've tried to do this simple thing in the template:
<canvas id="chart"></canvas>
<script>
$(function () {
//instantiate chart on $("#chart")
});
</script>
But this javascript doesn't even run when the template has been loaded by angular2.
How would I go about this?
Okay - with the help of @Pogrindis I think I found a usable, not too complex solution.
By simply adding the typing definition for chart.js from here and referencing it in a custom directive I finally have this:
chart.directive.ts
/// <reference path="../../typings/chartjs/chart.d.ts" />
import {Directive, ElementRef, Renderer, Input} from 'angular2/core';
@Directive({
selector: '[chart]'
})
export class ChartDirective {
constructor(el: ElementRef, renderer: Renderer) {
//el.nativeElement.style.backgroundColor = 'yellow';
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.2)",
strokeColor: "rgba(220,220,220,1)",
pointColor: "rgba(220,220,220,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(220,220,220,1)",
data: [65, 59, 80, 81, 56, 55, 40]
},
{
label: "My Second dataset",
fillColor: "rgba(151,187,205,0.2)",
strokeColor: "rgba(151,187,205,1)",
pointColor: "rgba(151,187,205,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(151,187,205,1)",
data: [28, 48, 40, 19, 86, 27, 90]
}
]
};
var ctx: any = el.nativeElement.getContext("2d");
var lineChart = new Chart(ctx);
////var lineChartOptions = areaChartOptions;
////lineChartOptions.datasetFill = false;
lineChart.Line(data);
}
}
app.component.ts
import {Component} from 'angular2/core';
import {ChartDirective} from './chart.directive';
@Component({
directives: [ChartDirective],
selector: 'chart-graph',
templateUrl: '/js/app/template.html'
})
export class AppComponent { }
and template.html:
<canvas id="myChart" chart width="400" height="400"></canvas>
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