wijmo.angular2.chart.annotation Class WjFlexChartAnnotationLayer Wijmo API Class

WjFlexChartAnnotationLayer Class

Angular 2 component for the wijmo.chart.annotation.AnnotationLayer control.

The wj-flex-chart-annotation-layer component must be contained in one of the following components: wijmo.angular2.chart.WjFlexChart or wijmo.angular2.chart.finance.WjFinancialChart.

Use the wj-flex-chart-annotation-layer component to add AnnotationLayer controls to your Angular 2 applications. For details about Angular 2 markup syntax, see Angular 2 Markup.

The WjFlexChartAnnotationLayer component is derived from the AnnotationLayer control and inherits all its properties, events and methods.

The wj-flex-chart-annotation-layer component may contain the following child components: wijmo.angular2.chart.annotation.WjFlexChartAnnotationText , wijmo.angular2.chart.annotation.WjFlexChartAnnotationEllipse , wijmo.angular2.chart.annotation.WjFlexChartAnnotationRectangle , wijmo.angular2.chart.annotation.WjFlexChartAnnotationLine , wijmo.angular2.chart.annotation.WjFlexChartAnnotationPolygon , wijmo.angular2.chart.annotation.WjFlexChartAnnotationCircle , wijmo.angular2.chart.annotation.WjFlexChartAnnotationSquare and wijmo.angular2.chart.annotation.WjFlexChartAnnotationImage.




initialized: EventEmitter<any>

This event is triggered after the component has been initialized by Angular, that is all bound properties have been assigned and child components (if any) have been initialized.


isInitialized: boolean

Indicates whether the component has been initialized by Angular. Changes its value from false to true right before triggering the initialized event.


Gets the collection of annotation elements in the AnnotationLayer.


wjProperty: string

Gets or sets a name of a property that this component is assigned to. Default value is ''.



  • created(): void
  • If you create a custom component inherited from a Wijmo component, you can override this method and perform necessary initializations that you usually do in a class constructor. This method is called in the last line of a Wijmo component constructor and allows you to not declare your custom component's constructor at all, thus preventing you from a necessity to maintain constructor parameters and keep them in synch with Wijmo component's constructor parameters.

    Returns void