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NG2-Charts Kann nicht an 'Datensätze' gebunden werden, da es keine bekannte Eigenschaft von 'Canvas' ist

Ich versuche das grundlegende Beispiel von NG2-Charts zu verwenden ( http://valor-software.com/ng2-charts/ )

Ich habe den HTML-Teil kopiert

  <div style="display: block">
    <canvas baseChart
        [datasets]="barChartData"
        [labels]="barChartLabels"
        [options]="barChartOptions"
        [legend]="barChartLegend"
        [chartType]="barChartType"
        (chartHover)="chartHovered($event)"
        (chartClick)="chartClicked($event)"></canvas>
  </div>

und der TypeScript-Teil

  private barChartOptions: any = {
    scaleShowVerticalLines: false,
    responsive: true
  };
  private barChartLabels: string[] = ['2006', '2007', '2008', '2009', '2010', '2011', '2012'];
  private barChartType: string = 'bar';
  private barChartLegend: boolean = true;

  private barChartData: any[] = [
    { data: [65, 59, 80, 81, 56, 55, 40], label: 'Series A' },
    { data: [28, 48, 40, 19, 86, 27, 90], label: 'Series B' }
  ];

  // events
  private chartClicked(e: any): void {
      console.log(e);
  }

  private chartHovered(e: any): void {
      console.log(e);
  }

Ich führe npm install ng2-charts --save, npm install chart.js --save und typings install dt~chart.js --save --global aus.

Ich habe auch chart.js in meine vendor.ts-Datei importiert

import 'chart.js';

Meine Abhängigkeiten: 

{
    "@angular/common": "^2.0.0",
    "@angular/compiler": "2.0.0",
    "@angular/core": "2.0.0",
    "@angular/forms": "2.0.0",
    "@angular/http": "2.0.0",
    "@angular/platform-browser": "2.0.0",
    "@angular/platform-browser-dynamic": "2.0.0",
    "@angular/router": "3.0.0",
    "angular2-jwt": "^0.1.18",
    "chart.js": "^2.3.0",
    "core-js": "^2.4.0",
    "json-loader": "^0.5.4",
    "moment": "^2.14.1",
    "ng2-charts": "^1.4.0",
    "reflect-metadata": "0.1.2",
    "rxjs": "5.0.0-beta.11",
    "zone.js": "^0.6.23"
  }

Hier ist der Fehler

Unhandled Promise rejection: Template parse errors:
Can't bind to 'datasets' since it isn't a known property of 'canvas'. ("iuminfooneoptionsTwo">
            <div style="display: block">
                <canvas baseChart [ERROR ->][datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLeg"): [email protected]:34
Can't bind to 'labels' since it isn't a known property of 'canvas'. ("          <div style="display: block">
                <canvas baseChart [datasets]="barChartData" [ERROR ->][labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChart"): [email protected]:60
Can't bind to 'options' since it isn't a known property of 'canvas'. ("lay: block">
                <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [ERROR ->][options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartH"): [email protected]:86
Can't bind to 'legend' since it isn't a known property of 'canvas'. ("  <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [ERROR ->][legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)"): [email protected]:114
Can't bind to 'chartType' since it isn't a known property of 'canvas'. ("ets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [ERROR ->][chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)="chartClicked($event)">
"): [email protected]:140 ; Zone: <root> ; Task: Promise.then ; Value: Error: Template parse errors:(…) Error: Template parse errors:
Can't bind to 'datasets' since it isn't a known property of 'canvas'. ("iuminfooneoptionsTwo">
            <div style="display: block">
                <canvas baseChart [ERROR ->][datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLeg"): [email protected]:34
Can't bind to 'labels' since it isn't a known property of 'canvas'. ("          <div style="display: block">
                <canvas baseChart [datasets]="barChartData" [ERROR ->][labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChart"): [email protected]:60
Can't bind to 'options' since it isn't a known property of 'canvas'. ("lay: block">
                <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [ERROR ->][options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartH"): [email protected]:86
Can't bind to 'legend' since it isn't a known property of 'canvas'. ("  <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [ERROR ->][legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)"): [email protected]:114
Can't bind to 'chartType' since it isn't a known property of 'canvas'. ("ets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [ERROR ->][chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)="chartClicked($event)">
"): [email protected]:140
    at TemplateParser.parse (eval at <anonymous> (http://localhost:8080/vendor.js:623:1), <anonymous>:133:19)
    at RuntimeCompiler._compileTemplate (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:244:51)
    at eval (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:167:83)
    at Set.forEach (native)
    at compile (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:167:47)
    at ZoneDelegate.invoke (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:192:28)
    at Zone.run (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:85:43)
    at eval (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:451:57)
    at ZoneDelegate.invokeTask (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:225:37)
    at Zone.runTask (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:125:47)
    at drainMicroTaskQueue (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:357:35)

Die NG2-Charts-Website sagt, ich muss dies in den HTML-Code aufnehmen

<script src="node_modules/chart.js/src/chart.js"></script>

Aber ich denke, das ist nicht richtig, denn wie würde diese Aussage in einer produktiven Minify/Built-App funktionieren? Ich dachte auch, meine Webpack-Import-Anweisung würde das schon erledigen. Ich googelte herum, fand aber leider nur etwas für einige Angular 2 Beta-Versionen in den NG2-Charts. 

Hat jemand eine Idee, wie man das beheben kann? 

Danke und Prost, Raphael Hippe

27
Raphael Hippe

Versuchen Sie, ChartsModule wie folgt in Ihre app.module.ts zu importieren.

import { ChartsModule } from 'ng2-charts/ng2-charts';

imports: [
   .....
   ChartsModule
   .....
]
32
Sanket

Ich arbeite mit ng2-Charts + Angular 7 + Ionic 4, und ich habe mehrere Stunden auf der Suche nach einer Lösung verbracht. Und das hat mir schließlich geholfen ( Nachdem Sie die ersten Schritte befolgt haben, können Sie natürlich ng2-charts und charts.js installieren. Importieren Sie einfach ChartsModule in die folgenden Dateien:

app.module.ts

import { ChartsModule } from 'ng2-charts';
...
imports: [ChartsModule]

yourPage.module.ts

import { ChartsModule } from 'ng2-charts';
@NgModule({
  imports: [
    IonicModule,
    CommonModule,
    FormsModule,
    RouterModule.forChild([{ path: '', component: YourPagePage }]),
    **ChartsModule**
  ]
})

Ich habe versucht, es auch in yourPage.page.ts zu importieren, aber die Lösung bestand darin, es in yourPage.module.ts zu importieren!

Versuch es.

5
André Leitão

Ich hatte das gleiche Problem. Ich habe auf github festgestellt, dass Sie nur das ChartsModule auch in das Submodul einfügen müssen. Zuerst fügen Sie app.module.ts und den in meinem Fall reports.module.ts hinzu.

2
André Luiz

In meinem Fall musste ich ändern, wie ich importiere, und ein wenig an meinem HTML-Datei-Tag ändern:

chart.component.ts

import {Component} from '@angular/core';
import {CHART_DIRECTIVES} from 'ng2-charts/ng2-charts';

@Component({
    selector: 'chart-balance',
    template: require('./templates/chart-balance.template'),
    styles: [`.chart {display: block; width: 100%;}`],
    directives: [CHART_DIRECTIVES]
})

export class ChartBalanceComponent {
    public barChartOptions:any = {
        scaleShowVerticalLines: false,
        responsive: true,
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero: true,
                    callback: label => `${label.toLocaleString()}`
                }
            }]
        }
    };
    public barChartLabels:string[] = ['2014', '2015', '2016'];
    public barChartType:string = 'bar';
    public barChartLegend:boolean = true;

    public barChartData:any[] = [
        {data: [32131, 3432, 543], label:'Test 1'},
        {data: [54353, 432, 768], label:'Test 2'}
    ];

    // events
    public chartClicked(e:any):void {
        console.log(e);
    }

    public chartHovered(e:any):void {
        console.log(e);
    }

}

Hier war eine weitere Änderung, die ich gemacht habe:

notice -> base-chart class = "chart" ...

chart-balance.template

<base-chart class="chart"
        [datasets]="barChartData"
        [labels]="barChartLabels"
        [options]="barChartOptions"
        [legend]="barChartLegend"
        [chartType]="barChartType"
        (chartHover)="chartHovered($event)"
        (chartClick)="chartClicked($event)"></base-chart>

ng2-charts

export * from './components/charts/charts';
declare var _default: {
    directives: any[][];
};
export default _default;

Diagramme

import { OnDestroy, OnInit, OnChanges, EventEmitter, ElementRef } from '@angular/core';
export declare class BaseChartComponent implements OnDestroy, OnChanges, OnInit {
    static defaultColors: Array<number[]>;
    data: number[] | Array<number[]>;
    datasets: any[];
    labels: Array<any>;
    options: any;
    chartType: string;
    colors: Array<any>;
    legend: boolean;
    chartClick: EventEmitter<any>;
    chartHover: EventEmitter<any>;
    private ctx;
    private cvs;
    private parent;
    private chart;
    private initFlag;
    private element;
    constructor(element: ElementRef);
    ngOnInit(): any;
    ngOnChanges(): any;
    ngOnDestroy(): any;
    getChartBuilder(ctx: any): any;
    private refresh();
}
export interface Color {
    backgroundColor?: string | string[];
    borderWidth?: number | number[];
    borderColor?: string | string[];
    borderCapStyle?: string;
    borderDash?: number[];
    borderDashOffset?: number;
    borderJoinStyle?: string;
    pointBorderColor?: string | string[];
    pointBackgroundColor?: string | string[];
    pointBorderWidth?: number | number[];
    pointRadius?: number | number[];
    pointHoverRadius?: number | number[];
    pointHitRadius?: number | number[];
    pointHoverBackgroundColor?: string | string[];
    pointHoverBorderColor?: string | string[];
    pointHoverBorderWidth?: number | number[];
    pointStyle?: string | string[];
    hoverBackgroundColor?: string | string[];
    hoverBorderColor?: string | string[];
    hoverBorderWidth?: number;
}
export interface Colors extends Color {
    data?: number[];
    label?: string;
}
export declare const CHART_DIRECTIVES: Array<any>;
0
Jorge Casariego