在angular中,如何从component.ts访问类方法?
我正在做一个角度项目,在那里我有一个按钮,我想它隐藏所有,但一个特定的系列海图。这可能很简单,但我只做了一段时间的web开发,在一些基础知识上有点欠缺。我不是一个真正的网络开发者,但我同意承担一些工作,而不是让公司雇佣一个知道他们在做什么的人。无论如何,一个合适的开发人员为我设置了这个项目,并向我展示了如何做我想做的事情,但他目前正在休假,我有点卡住了 因此,我使用highcharts来显示一些数据。我有一个highcharts文件夹,其中包含一个名为highcharts-component.ts的可重用组件,如下所示:在angular中,如何从component.ts访问类方法?,angular,class,highcharts,Angular,Class,Highcharts,我正在做一个角度项目,在那里我有一个按钮,我想它隐藏所有,但一个特定的系列海图。这可能很简单,但我只做了一段时间的web开发,在一些基础知识上有点欠缺。我不是一个真正的网络开发者,但我同意承担一些工作,而不是让公司雇佣一个知道他们在做什么的人。无论如何,一个合适的开发人员为我设置了这个项目,并向我展示了如何做我想做的事情,但他目前正在休假,我有点卡住了 因此,我使用highcharts来显示一些数据。我有一个highcharts文件夹,其中包含一个名为highcharts-component.t
import { Component, ElementRef, Input, OnDestroy, OnInit } from "@angular/core";
import { chart } from "highcharts";
import * as Highcharts from "highcharts";
import drilldown from "highcharts/modules/drilldown.src.js";
drilldown(Highcharts);
declare var require: any;
require("highcharts/highcharts-more")(Highcharts);
require("highcharts/modules/solid-gauge")(Highcharts);
require("highcharts/modules/heatmap")(Highcharts);
require("highcharts/modules/treemap")(Highcharts);
require("highcharts/modules/funnel")(Highcharts);
@Component({
selector: "app-chart",
styleUrls: ["./styles.scss"],
templateUrl: "./template.html"
})
export class ChartComponent implements OnDestroy, OnInit {
@Input()
set options(value: Highcharts.Options) {
this._options = value;
this.chart = chart(this.elementRef.nativeElement, this._options);
}
private chart: Highcharts.ChartObject;
private _options: Highcharts.Options;
constructor(private elementRef: ElementRef) {}
ngOnDestroy() {
this.chart = null;
}
ngOnInit() {
this.chart = chart(this.elementRef.nativeElement, this._options);
}
public showSingleSeries(seriesNumber) {
for (let x = 0; x < this.chart.series.length; x++) {
if (x == seriesNumber) {
this.chart.series[seriesNumber].show();
} else {
this.chart.series[seriesNumber].hide();
}
}
}
}
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { NgModule, OnInit, ViewChild, ElementRef, VERSION } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { Component } from '@angular/core';
import * as Highcharts from "highcharts";
/**
* @title Card with multiple sections
*/
@Component({
selector: 'card-fancy-example',
templateUrl: 'card-fancy-example.html',
styleUrls: ['card-fancy-example.css'],
})
export class CardFancyExample {
myChart: Highcharts.Options = {
// Created pie chart using Highchart
chart: {
type: 'pie'
},
title: {
text: 'Contents using Pie chart'
},
subtitle: {
text: '3D donut in Highcharts'
},
plotOptions: {
pie: {
innerSize: 100,
depth: 45
}
}
};
constructor() {
}
ngOnInit() {
this.loadChart();
}
loadChart()
{
this.myChart = {
...this.myChart,
series: [{
name: 'Operating Systems',
data: [
{
name: 'Windows',
y: 88.19,
drilldown: 'windows-versions'
},
['MacOSX', 9.22],
['Linux', 1.58],
['Others', 1.01]
]
}],
drilldown: {
series: [{
name: 'Windows versions',
id: 'windows-versions',
data: [
['Win 7', 55.03],
['Win XP', 15.83],
['Win Vista', 3.59],
['Win 8', 7.56],
['Win 8.1', 6.18]
]
}]
}
}
}
showSingleSeries(seriesNumber)
{
// Where I want to call the showSingleSeries method in highcharts-component.ts
}
}
<button (click)="showSingleSeries(0)">Remove All Series But Windows</button>
<button (click)="showSingleSeries(1)">Remove All Series But Linux</button>
<app-chart [options]="myChart"></app-chart>
public showSingleSeries(seriesNumber) {
for (let x = 0; x < this.chart.series.length; x++) {
if (x == seriesNumber) {
this.chart.series[x].show();
} else {
this.chart.series[x].hide();
}
}
}
我的html文件如下所示:
import { Component, ElementRef, Input, OnDestroy, OnInit } from "@angular/core";
import { chart } from "highcharts";
import * as Highcharts from "highcharts";
import drilldown from "highcharts/modules/drilldown.src.js";
drilldown(Highcharts);
declare var require: any;
require("highcharts/highcharts-more")(Highcharts);
require("highcharts/modules/solid-gauge")(Highcharts);
require("highcharts/modules/heatmap")(Highcharts);
require("highcharts/modules/treemap")(Highcharts);
require("highcharts/modules/funnel")(Highcharts);
@Component({
selector: "app-chart",
styleUrls: ["./styles.scss"],
templateUrl: "./template.html"
})
export class ChartComponent implements OnDestroy, OnInit {
@Input()
set options(value: Highcharts.Options) {
this._options = value;
this.chart = chart(this.elementRef.nativeElement, this._options);
}
private chart: Highcharts.ChartObject;
private _options: Highcharts.Options;
constructor(private elementRef: ElementRef) {}
ngOnDestroy() {
this.chart = null;
}
ngOnInit() {
this.chart = chart(this.elementRef.nativeElement, this._options);
}
public showSingleSeries(seriesNumber) {
for (let x = 0; x < this.chart.series.length; x++) {
if (x == seriesNumber) {
this.chart.series[seriesNumber].show();
} else {
this.chart.series[seriesNumber].hide();
}
}
}
}
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { NgModule, OnInit, ViewChild, ElementRef, VERSION } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { Component } from '@angular/core';
import * as Highcharts from "highcharts";
/**
* @title Card with multiple sections
*/
@Component({
selector: 'card-fancy-example',
templateUrl: 'card-fancy-example.html',
styleUrls: ['card-fancy-example.css'],
})
export class CardFancyExample {
myChart: Highcharts.Options = {
// Created pie chart using Highchart
chart: {
type: 'pie'
},
title: {
text: 'Contents using Pie chart'
},
subtitle: {
text: '3D donut in Highcharts'
},
plotOptions: {
pie: {
innerSize: 100,
depth: 45
}
}
};
constructor() {
}
ngOnInit() {
this.loadChart();
}
loadChart()
{
this.myChart = {
...this.myChart,
series: [{
name: 'Operating Systems',
data: [
{
name: 'Windows',
y: 88.19,
drilldown: 'windows-versions'
},
['MacOSX', 9.22],
['Linux', 1.58],
['Others', 1.01]
]
}],
drilldown: {
series: [{
name: 'Windows versions',
id: 'windows-versions',
data: [
['Win 7', 55.03],
['Win XP', 15.83],
['Win Vista', 3.59],
['Win 8', 7.56],
['Win 8.1', 6.18]
]
}]
}
}
}
showSingleSeries(seriesNumber)
{
// Where I want to call the showSingleSeries method in highcharts-component.ts
}
}
<button (click)="showSingleSeries(0)">Remove All Series But Windows</button>
<button (click)="showSingleSeries(1)">Remove All Series But Linux</button>
<app-chart [options]="myChart"></app-chart>
public showSingleSeries(seriesNumber) {
for (let x = 0; x < this.chart.series.length; x++) {
if (x == seriesNumber) {
this.chart.series[x].show();
} else {
this.chart.series[x].hide();
}
}
}
删除除Windows以外的所有系列
删除除Linux以外的所有系列
谢谢
编辑:我在代码中编辑了几个bug,并更改了图表类型。我已经用解决方案更新了stackblitz。谢谢@Lys编辑
您希望父对象调用childs方法。您应该使用查看子对象
在html中
在ts文件中
@ViewChild(“图表”)图表代码>
然后称之为this.charts.showSingleSeries(1)代码>您好。谢谢你的回答,但我还有一个后续问题。如果我将该方法移动到一个新文件中,文件中就不会有this.chart
对象,对吗?