Dynamic Series from the DataSource
Documentation
In this example, data for series is provided in a peculiar manner. Each object in the data source represents a point in a single series. To define series in this case, use the seriesTemplate object where you need to specify the data field providing series names and custom settings for a given series. Settings common to all series must be set within the commonSeriesSettings object. Providing data in this manner is useful when the number of points within a single series changes over time.
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<dx-chart
id="chart"
[dataSource]="productionData"
palette="violet">
<dxo-common-series-settings
argumentField="country"
type="bar"
valueField="oil">
</dxo-common-series-settings>
<dxo-series-template
nameField="year"
[customizeSeries]="customizeSeries">
</dxo-series-template>
<dxo-title text="Oil Production">
<dxo-subtitle text="(in millions tonnes)"></dxo-subtitle>
</dxo-title>
<dxo-legend
verticalAlignment="bottom"
horizontalAlignment="center">
</dxo-legend>
<dxo-export [enabled]="true"></dxo-export>
</dx-chart>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxChartModule } from 'devextreme-angular';
import { Service, Production } from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
providers: [Service],
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css']
})
export class AppComponent {
productionData: Production[];
constructor(service: Service) {
this.productionData = service.getProductionData();
}
customizeSeries(valueFromNameField: number) {
return valueFromNameField === 2009 ?
{ type: "line", label: { visible: true }, color: "#ff3f7a" } : {};
}
}
@NgModule({
imports: [
BrowserModule,
DxChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #chart {
height: 440px;
width: 100%;
}
import { Injectable } from '@angular/core';
export class Production {
year: number;
country: string;
oil: number;
}
let productionData: Production[] = [{
year: 1970,
country: "Saudi Arabia",
oil: 192.2
}, {
year: 1970,
country: "USA",
oil: 533.5
}, {
year: 1970,
country: "Iran",
oil: 192.6
}, {
year: 1970,
country: "Mexico",
oil: 24.2
}, {
year: 1980,
country: "Saudi Arabia",
oil: 509.8
}, {
year: 1980,
country: "USA",
oil: 480.2
}, {
year: 1980,
country: "Iran",
oil: 74.3
}, {
year: 1980,
country: "Mexico",
oil: 107.2
}, {
year: 1990,
country: "Saudi Arabia",
oil: 342.6
}, {
year: 1990,
country: "USA",
oil: 416.6
}, {
year: 1990,
country: "Iran",
oil: 162.8
}, {
year: 1990,
country: "Mexico",
oil: 146.3
}, {
year: 1990,
country: "Russia",
oil: 515.9
}, {
year: 2000,
country: "Saudi Arabia",
oil: 456.3
}, {
year: 2000,
country: "USA",
oil: 352.6
}, {
year: 2000,
country: "Iran",
oil: 191.3
}, {
year: 2000,
country: "Mexico",
oil: 171.2
}, {
year: 2000,
country: "Russia",
oil: 323.3
}, {
year: 2008,
country: "Saudi Arabia",
oil: 515.3
}, {
year: 2008,
country: "USA",
oil: 304.9
}, {
year: 2008,
country: "Iran",
oil: 209.9
}, {
year: 2008,
country: "Mexico",
oil: 157.7
}, {
year: 2008,
country: "Russia",
oil: 488.5
}, {
year: 2009,
country: "Saudi Arabia",
oil: 459.5
}, {
year: 2009,
country: "USA",
oil: 325.3
}, {
year: 2009,
country: "Iran",
oil: 202.4
}, {
year: 2009,
country: "Mexico",
oil: 147.5
}, {
year: 2009,
country: "Russia",
oil: 494.2
}
];
@Injectable()
export class Service {
getProductionData(): Production[] {
return productionData;
}
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "system",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.4.5/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib/tslib.js',
'rxjs': 'npm:rxjs',
'devextreme': 'npm:devextreme@20.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram@1.0.5',
'devexpress-gantt': 'npm:devexpress-gantt@1.0.3',
'devextreme-angular': 'npm:devextreme-angular@20.1'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
},
packageConfigPaths: [
"npm:*/package.json",
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular@20.1/*/package.json",
"npm:devextreme-angular@20.1/ui/*/package.json",
]
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.4/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>