Customize empty value cells

import { Component, OnInit } from '@angular/core';
import { IDataOptions } from '@syncfusion/ej2-angular-pivotview';
import { Pivot_Data } from './datasource.ts';

@Component({
  selector: 'app-container',
  // specifies the template string for the Pivot Grid component
  template: `<ejs-pivotview #pivotview id='PivotView' [dataSource]=dataSource width=width></ejs-pivotview>`
})
export class AppComponent implements OnInit {
    public dataSource: IDataOptions;
    public width: string;

    ngOnInit(): void {
        this.width = '100%';

        this.dataSource = {
            data: Pivot_Data,
            expandAll: false,
            emptyCellsTextContent: '*',
            formatSettings: [{ name: 'Amount', format: 'C2', useGrouping: false,
                    minimumSignificantDigits: 1, maximumSignificantDigits: 3 }],
            columns: [{ name: 'Year', caption: 'Production Year' }, { name: 'Quarter' }],
            values: [{ name: 'Sold', caption: 'Units Sold' }, { name: 'Amount', caption: 'Sold Amount' }],
            rows: [{ name: 'Country' }, { name: 'Products' }],
            filters: []
        };
    }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { PivotViewAllModule, PivotFieldListAllModule } from '@syncfusion/ej2-angular-pivotview';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        PivotViewAllModule,
        PivotFieldListAllModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }