이 컨트롤은 더 이상 사용되지 않고 그리드 구성 요소로 대체되었으므로 해당 컨트롤로 마이그레이션하는 것이 좋습니다. 새로운 기능은 제공되지 않으며 버그 수정은 우선순위에서 제외됩니다. 코드베이스를 Data Grid로 마이그레이션하는 데 도움이 필요하거나 질문이 있으면 지원팀에 문의하세요.

Web Components Column Summaries

Ignite UI for Web Components 데이터 테이블/데이터 그리드는 열 요약을 지원합니다. 경우에 따라 최종 사용자는 그리드에 표시되는 데이터의 양에 압도될 수 있으며 종종 데이터 요약을 찾을 수 있습니다. 최종 사용자는 특정 열의 데이터에서 추가 정보를 파생시킬 수도 있습니다. 요약은 최종 사용자가 이 작업을 수행하는 데 도움이 되며 속성을 설정하여 활성화할 수 있습니다 summaryScope.

Web Components 요소 열 요약 예

EXAMPLE

DATA

TS

HTML

CSS

export class DataGridSharedData {

    public static getEmployees(count?: number): any[] {
        if (count === undefined) {
            count = 250;
        }

        const employees: any[] = [];
        let maleCount: number = 0;
        let femaleCount: number = 0;
        for (let i = 0; i < count; i++) {
            const age: number = Math.round(this.getRandomNumber(20, 40));
            const gender: string = this.getRandomGender();
            const firstName: string = this.getRandomNameFirst(gender);
            const lastName: string = this.getRandomNameLast();
            const street: string = this.getRandomStreet();
            const country: string = this.getRandomItem(this.countries);
            const city: string = this.getRandomCity(country);
            const generation = Math.floor(age / 10) * 10 + "s";
            const email: string = firstName.toLowerCase() + "@" + this.getRandomItem(this.emails);
            const website: string = firstName.toLowerCase() + "-" + this.getRandomItem(this.websites);
            let photoPath: any;

            if (gender === "male") {
                maleCount++;
                if (maleCount > 26) {
                    maleCount = 1;
                }
                photoPath = this.getPhotoMale(maleCount);
            }
            else {
                femaleCount++;
                if (femaleCount > 24) {
                    femaleCount = 1;
                }
                photoPath = this.getPhotoFemale(femaleCount);
            }

            let person: any = {};
            person.Address = street + "," + city;
            person.Age = age;
            person.Birthday = this.getBirthday(age);
            person.City = city;
            person.Country = country;
            person.CountryFlag = this.getCountryFlag(country);
            person.Email = email;
            person.FirstName = firstName;
            person.Gender = this.getGenderPhoto(gender);
            person.Generation = generation;
            person.ID = this.pad(i + 1, 5);
            person.LastName = lastName;
            person.Name = firstName + " " + lastName;
            person.Phone = this.getRandomPhone();
            person.Photo = photoPath;
            person.Street = street;
            person.Salary = this.getRandomNumber(40, 200) * 1000;
            person.Sales = this.getRandomNumber(200, 980) * 1000;
            person.Website = website;
            person.Productivity = this.getProductivity();

            if (person.Salary < 50000) {
                person.Income = "Low";
            } else if (person.Salary < 100000) {
                person.Income = "Average";
            } else {
                person.Income = "High";
            }

            employees.push(person);
        }
        return employees;
    }

    public static getProductivity(weekCount?: number): any[] {
        if (weekCount === undefined) {
            weekCount = 52;
        }
        const productivity: any[] = [];
        for (let w = 0; w < weekCount; w++) {
            const value = this.getRandomNumber(-50, 50);
            productivity.push({Value: value, Week: w});
        }
        return productivity;
    }

    public static getSales(count?: number): any[] {
        if (count === undefined) {
            count = 250;
        }

        const names: string[] = [
            "Intel CPU", "AMD CPU",
            "Intel Motherboard", "AMD Motherboard", "NVIDIA Motherboard",
            "NVIDIA GPU", "GIGABYTE GPU", "Asus GPU", "AMD GPU", "MSI GPU",
            "Corsair Memory", "Patriot Memory", "Skill Memory",
            "Samsung HDD", "WD HDD", "Seagate HDD", "Intel HDD",
            "Samsung SSD", "WD SSD", "Seagate SSD", "Intel SSD",
            "Samsung Monitor", "Asus Monitor", "LG Monitor", "HP Monitor" ];
        const countries: string[] = ["USA", "UK", "France", "Canada", "Poland", "Japan", "Germany"];
        const status: string[] = ["Packing", "Shipped", "Delivered"];
        const sales: any[] = [];

        for (let i = 0; i < count; i++) {
            const price = this.getRandomNumber(100, 900);
            const items = this.getRandomNumber(10, 80);
            const value = price * items;
            const margin = this.getRandomNumber(3, 10);
            const profit = Math.round((price * margin / 100) * items);
            const country = this.getRandomItem(countries);
            sales.push({
                BundlePrice: price,
                ProductPrice: price,
                Margin: margin,
                OrderDate: this.getRandomDate(new Date(2012, 0, 1), new Date()),
                OrderItems: items,
                OrderValue: value, //  Math.round(value / 1000) + "," + Math.round(value % 1000),
                ProductID: 1001 + i,
                ProductName: this.getRandomItem(names),
                Profit: profit,
                Countries: country,
                CountryFlag: this.getCountryFlag(country),
                Status: this.getRandomItem(status)
            });
        }
        return sales;
    }

    public static getHouses(count?: number): any[] {
        if (count === undefined) {
            count = 250;
        }

        const houses: any[] = [];
        const property: string[] = [ "Townhouse", "Single", "Condo", "Villa"];
        const emails: string[] = [ "estates.com", "remax.com", "zillow.com", "realtor.com", "coldwell.com"];
        const countries: string[] = ["USA", "UK", "France", "Canada", "Poland", "Japan", "Germany"];

        for (let i = 0; i < count; i++) {
            const year: number = this.getRandomNumber(1950, 2015);
            const age: number = 2020 - year;

            const gender: string = this.getRandomGender();
            const firstName: string = this.getRandomNameFirst(gender);
            const lastName: string = this.getRandomNameLast();
            const initials = firstName.substr(0, 1).toLowerCase();
            const email: string = initials + lastName.toLowerCase() + "@" + this.getRandomItem(emails);

            const street: string = this.getRandomStreet();
            const country: string = this.getRandomItem(countries);
            const city: string = this.getRandomCity(country);

            houses.push({
                Address: street + "," + city,
                Age: age,
                Agent: firstName + " " + lastName,
                Area: this.getRandomNumber(50, 300),
                Baths: this.getRandomNumber(1, 3),
                Built: year,
                City: city,
                Country: country,
                CountryFlag: this.getCountryFlag(country),
                Email: email,
                ID: this.pad(i + 1, 5),
                Phone: this.getRandomPhone(),
                Price: this.getRandomNumber(210, 900) * 1000,
                Property: this.getRandomItem(property),
                Rooms: this.getRandomNumber(2, 5),
                SaleDate: this.getRandomDate(new Date(2015, 0, 1), new Date()),
                Street: street,
            });
        }
        return houses;
    }

    private static websites: string[] = [ ".com", ".gov", ".edu", ".org"];
    private static emails: string[] = [ "gmail.com", "yahoo.com", "twitter.com"];
    private static genders: string[] = ["male", "female"];
    private static maleNames: string[] = ["Kyle", "Oscar", "Ralph", "Mike", "Bill", "Frank", "Howard", "Jack", "Larry", "Pete", "Steve", "Vince", "Mark", "Alex", "Max", "Brian", "Chris", "Andrew", "Martin", "Mike", "Steve", "Glenn", "Bruce"];
    private static femaleNames: string[] = ["Gina", "Irene", "Katie", "Brenda", "Casey", "Fiona", "Holly", "Kate", "Liz", "Pamela", "Nelly", "Marisa", "Monica", "Anna", "Jessica", "Sofia", "Isabella", "Margo", "Jane", "Audrey", "Sally", "Melanie", "Greta", "Aurora", "Sally"];
    private static lastNames: string[] = ["Adams", "Crowley", "Ellis", "Martinez", "Irvine", "Maxwell", "Clark", "Owens", "Rooney", "Lincoln", "Thomas", "Spacey", "MOrgan", "King", "Newton", "Fitzgerald", "Holmes", "Jefferson", "Landry", "Berry", "Perez", "Spencer", "Starr", "Carter", "Edwards", "Stark", "Johnson", "Fitz", "Chief", "Blanc", "Perry", "Stone", "Williams", "Lane", "Jobs", "Adams", "Power", "Tesla"];
    private static countries: string[] = ["USA", "UK", "France", "Canada", "Poland"];
    private static citiesUS: string[] = ["New York", "Los Angeles", "Miami", "San Francisco", "San Diego", "Las Vegas"];
    private static citiesUK: string[] = ["London", "Liverpool", "Manchester"];
    private static citiesFR: string[] = ["Paris", "Marseille", "Lyon"];
    private static citiesCA: string[] = ["Toronto", "Vancouver", "Montreal"];
    private static citiesPL: string[] = ["Krakow", "Warsaw", "Wroclaw", "Gdansk"];
    private static citiesJP: string[] = ["Tokyo", "Osaka", "Kyoto", "Yokohama"];
    private static citiesGR: string[] = ["Berlin", "Bonn", "Cologne", "Munich", "Hamburg"];
    private static roadSuffixes: string[] = ["Road", "Street", "Way"];
    private static roadNames: string[] = ["Main", "Garden", "Broad", "Oak", "Cedar", "Park", "Pine", "Elm", "Market", "Hill"];

    private static getRandomNumber(min: number, max: number): number {
        return Math.round(min + Math.random() * (max - min));
    }

    private static getRandomItem(array: any[]): any {
        const index = Math.round(this.getRandomNumber(0, array.length - 1));
        return array[index];
    }

    private static getRandomDate(start: Date, end: Date) {
        return new Date(start.getTime() + Math.random() * (end.getTime() - start.getTime()));
    }

    private static getRandomPhone(): string {
        const phoneCode = this.getRandomNumber(100, 900);
        const phoneNum1 = this.getRandomNumber(100, 900);
        const phoneNum2 = this.getRandomNumber(1000, 9000);
        const phone = phoneCode + "-" + phoneNum1 + "-" + phoneNum2;
        return phone;
    }

    private static getRandomGender(): string {
        return this.getRandomItem(this.genders);
    }

    private static getRandomNameLast(): string {
        return this.getRandomItem(this.lastNames);
    }

    private static getRandomNameFirst(gender: string): string {
        if (gender === "male") {
            return this.getRandomItem(this.maleNames);
        }
        else {
            return this.getRandomItem(this.femaleNames);
        }
    }

    private static getRandomCity(country: string): string {
        if (country === "Canada") {
            return this.getRandomItem(this.citiesCA);
        } else if (country === "France") {
            return this.getRandomItem(this.citiesFR);
        } else if (country === "Poland") {
            return this.getRandomItem(this.citiesPL);
        } else if (country === "USA") {
            return this.getRandomItem(this.citiesUS);
        } else if (country === "Japan") {
            return this.getRandomItem(this.citiesJP);
        } else if (country === "Germany") {
            return this.getRandomItem(this.citiesGR);
        } else { // if (country === "United Kingdom") {
            return this.getRandomItem(this.citiesUK);
        }
    }

    private static getRandomStreet(): string {
        const num = Math.round(this.getRandomNumber(100, 300)).toString();
        const road = this.getRandomItem(this.roadNames);
        const suffix = this.getRandomItem(this.roadSuffixes);
        return num + " " + road + " " + suffix;
    }

    private static getBirthday(age: number): Date {
        const today: Date = new Date();
        const year: number = today.getFullYear() - age;
        const month: number = this.getRandomNumber(0, 8);
        const day: number = this.getRandomNumber(10, 27);
        return new Date(year, month, day);
    }

    private static getPhotoMale(id: number): string {
        return 'https://static.infragistics.com/xplatform/images/people//GUY' + this.pad(id, 2) + '.png';
    }

    private static getPhotoFemale(id: number): string {
        return 'https://static.infragistics.com/xplatform/images/people/GIRL' + this.pad(id, 2) + '.png';
    }

    private static getGenderPhoto(gender: string): string {
        return 'https://static.infragistics.com/xplatform/images/genders/' + gender + '.png';
    }

    private static getCountryFlag(country: string): string {
        return 'https://static.infragistics.com/xplatform/images/flags/' + country + '.png';
    }

    private static pad(num: number, size: number) {
        let s = num + "";
        while (s.length < size) {
            s = "0" + s;
        }
        return s;
    }

}
tsコピー

import { IgcDataGridModule } from 'igniteui-webcomponents-grids';
import { IgcGridColumnOptionsModule } from 'igniteui-webcomponents-grids';
import { IgcDataGridComponent } from 'igniteui-webcomponents-grids';
import { ModuleManager, IgcProvideCalculatorEventArgs } from 'igniteui-webcomponents-core';
import { DataGridSharedData } from './DataGridSharedData';
import { IgcColumnGroupDescription } from 'igniteui-webcomponents-grids';
import { IgcColumnSummaryDescription } from 'igniteui-webcomponents-grids'
import { DataSourceSummaryOperand, SummaryCalculator, DefaultSummaryResult, IDataSource, ISummaryResult } from 'igniteui-webcomponents-core';

ModuleManager.register(
    IgcDataGridModule,
    IgcGridColumnOptionsModule
);

export class DataGridColumnSummaries {

    private grid: IgcDataGridComponent;

    constructor() {

        this.onSummaryScopeChanging = this.onSummaryScopeChanging.bind(this);
        this.onGroupSummaryDisplayModeChanging = this.onGroupSummaryDisplayModeChanging.bind(this);

        this.grid = document.getElementById('grid') as IgcDataGridComponent;
        this.grid.dataSource = DataGridSharedData.getSales();

        document.getElementById('onSummaryScopeChanging')!.addEventListener('change', this.onSummaryScopeChanging);
        document.getElementById('onGroupSummaryDisplayModeChanging')!.addEventListener('change', this.onGroupSummaryDisplayModeChanging);

        this.onLoad();
    }

    onSummaryScopeChanging = (e: any) => {
        this.grid.summaryScope = e.target.value;
    }

    onGroupSummaryDisplayModeChanging = (e: any) => {
        this.grid.groupSummaryDisplayMode = e.target.value;
    }

    onLoad() {
        const productGroup = new IgcColumnGroupDescription();
        productGroup.field = 'ProductName';
        productGroup.displayName = 'ProductName';
        this.grid.groupDescriptions.add(productGroup);

        const productCount = new IgcColumnSummaryDescription();
        productCount.field = 'ProductName';
        productCount.operand = DataSourceSummaryOperand.Count;
        this.grid.summaryDescriptions.add(productCount);

        const priceMin = new IgcColumnSummaryDescription();
        priceMin.field = 'BundlePrice';
        priceMin.operand = DataSourceSummaryOperand.Min;
        priceMin.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
        this.grid.summaryDescriptions.add(priceMin);

        const priceMax = new IgcColumnSummaryDescription();
        priceMax.field = 'BundlePrice';
        priceMax.operand = DataSourceSummaryOperand.Max;
        priceMax.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
        this.grid.summaryDescriptions.add(priceMax);

        const orderSum = new IgcColumnSummaryDescription();
        orderSum.field = 'OrderItems';
        orderSum.operand = DataSourceSummaryOperand.Sum;
        this.grid.summaryDescriptions.add(orderSum);

        const orderValueSum = new IgcColumnSummaryDescription();
        orderValueSum.field = 'OrderValue';
        orderValueSum.operand = DataSourceSummaryOperand.Sum;
        orderValueSum.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0});
        this.grid.summaryDescriptions.add(orderValueSum);

        const orderValueAvg = new IgcColumnSummaryDescription();
        orderValueAvg.field = 'OrderValue';
        orderValueAvg.operand = DataSourceSummaryOperand.Average;
        orderValueAvg.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
        this.grid.summaryDescriptions.add(orderValueAvg);

        const orderDateMin = new IgcColumnSummaryDescription();
        orderDateMin.field = 'OrderDate';
        orderDateMin.operand = DataSourceSummaryOperand.Min;
        orderDateMin.calculatorDisplayName = 'First'
        orderDateMin.formatOverride = new Intl.DateTimeFormat('en-EN');
        this.grid.summaryDescriptions.add(orderDateMin);

        const orderDateMax = new IgcColumnSummaryDescription();
        orderDateMax.field = 'OrderDate';
        orderDateMax.operand = DataSourceSummaryOperand.Max;
        orderDateMax.calculatorDisplayName = 'Last'
        orderDateMax.formatOverride = new Intl.DateTimeFormat('en-EN');
        this.grid.summaryDescriptions.add(orderDateMax);

        const sum1 = new IgcColumnSummaryDescription();
        sum1.field = 'Profit';
        sum1.operand = DataSourceSummaryOperand.Sum;
        sum1.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
        this.grid.summaryDescriptions.add(sum1);

        const avg2 = new IgcColumnSummaryDescription();
        avg2.field = 'Profit';
        avg2.operand = DataSourceSummaryOperand.Average;
        avg2.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
        this.grid.summaryDescriptions.add(avg2);

        const countries = new IgcColumnSummaryDescription();
        countries.field = 'Countries';
        countries.operand = DataSourceSummaryOperand.Custom;
        countries.provideCalculator = this.onProvideCalculator;
        this.grid.summaryDescriptions.add(countries);
    }

    onProvideCalculator(s: IgcColumnSummaryDescription, e: IgcProvideCalculatorEventArgs) {
        e.calculator = new CustomDomestic();
    }
}

// Custom Calculator - calculates the count for all USA.
class CustomDomestic extends SummaryCalculator {
    get displayName(): string {
        return 'USA';
    }

    public usCountries: number;

    public beginCalculation(a: IDataSource, b: string): void {
        super.beginCalculation(a, b);
        this.usCountries = 0;
    }

    public endCalculation(): ISummaryResult {
       return new DefaultSummaryResult(this.propertyName, DataSourceSummaryOperand.Custom, this.usCountries)
    }

    public aggregate(a: any): void {
       if (a.Countries === 'USA') {
            this.usCountries++;
       }
    }
}

new DataGridColumnSummaries();
tsコピー

<!DOCTYPE html>
<html>
  <head>
    <title>DataGridColumnSummaries</title>
    <meta charset="UTF-8" />

    <link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
    <link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" type="text/css" />

  </head>

  <body>
    <div id="root">

<div class="container sample">
    <div class="options horizontal">
        <span class="options-label">Summary Scope:</span>
        <select class="options-label" default-value="Root" id="onSummaryScopeChanging">
            <option>Root</option>
            <option>Groups</option>
            <option>Both</option>
            <option>None</option>
        </select>
        <span class="options-label" >Group Summary Display Mode:</span>
        <select class="options-label"  default-value="RowBottom" id="onGroupSummaryDisplayModeChanging">
            <option>List</option>
            <option>Cells</option>
            <option>RowTop</option>
            <option>RowBottom</option>
            <option>None</option>
        </select>
    </div>
    <igc-data-grid
        id="grid"
        height="calc(100% - 3rem)"
        width="100%"
        summary-scope="Root"
        group-summary-display-mode="RowTop"
        auto-generate-columns="false"
        is-group-collapsable="true"
        group-header-display-mode="combined"
        is-column-options-enabled="true"
        default-column-min-width="100"
        >
            <igc-numeric-column field="ProductID" header-text="ID" horizontal-alignment="center" ></igc-numeric-column>
            <igc-text-column field="ProductName" header-text="Product" width="*>160"></igc-text-column>
            <igc-numeric-column positive-prefix="$" field="BundlePrice" show-grouping-separator="true" header-text="Price" ></igc-numeric-column>
            <igc-numeric-column field="OrderItems" header-text="Order Items" width="*>135"></igc-numeric-column>
            <igc-numeric-column field="OrderValue" show-grouping-separator="true" header-text="Order Totals" positive-prefix="$" width="*>195"></igc-numeric-column>
            <igc-date-time-column field="OrderDate" header-text="Order Date" horizontal-alignment="right" width="*>180"></igc-date-time-column>
            <igc-numeric-column field="Profit" show-grouping-separator="true" header-text="Profit" positive-prefix="$" width="*>165"></igc-numeric-column>
            <igc-text-column field="Countries" header-text="Country" width="*>115"></igc-text-column>
    </igc-data-grid>
</div>

    </div>
    <!-- This script is needed only for parcel and it will be excluded for webpack -->
    <% if (false) { %><script src="src/index.ts"></script><% } %>

  </body>
</html>htmlコピー

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */cssコピー

Edit in: Codesandbox

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요약 범위 속성

Web Components 데이터 그리드는 속성을 사용하여 summaryScope 구성할 수 있는 4가지 요약 설정을 지원합니다. 이러한 내용은 아래에 나열되어 있습니다.

• Root: 요약이 적용되는 열에 대한 그리드의 모든 행에 대한 총합계가 표시됩니다.
• Groups: 그룹화된 행에만 적용되며 특정 그룹의 모든 행에 대한 총계를 표시합니다.
• Both: Groups 및 Root 옵션을 동시에 사용합니다.
• None: 그리드에 대한 요약을 비활성화합니다.

그룹 요약 표시 모드 속성

Web Components 데이터 그리드는 요약이 표시되는 위치의 구성을 지원합니다. 속성을 사용하여 이를 구성할 수 있습니다 groupSummaryDisplayMode. 이 속성에 대한 다양한 옵션이 나열되어 아래에 설명되어 있습니다.

• 목록: 그룹 요약을 스패닝 그룹 헤더의 단순 목록으로 렌더링합니다.
• 셀: 그룹 헤더를 셀로 렌더링하고 요약 값은 해당 열에 맞춰 셀 내부에 렌더링됩니다. 이 옵션을 사용하면 그리드에 열당 단일 요약만 표시됩니다.
• RowTop: 그룹 요약을 그룹 상단의 요약 행으로 렌더링합니다.
• RowBottom: 그룹 요약을 그룹 하단의 요약 행으로 렌더링합니다.
• 없음: 그룹 요약 렌더링이 비활성화됩니다.

코드 조각

<igc-data-grid
    summary-scope="Root"
    group-summary-display-mode="RowTop"
    auto-generate-columns="false"
    is-group-collapsable="true"
    group-header-display-mode="combined"
    default-column-min-width="100">
        <igc-text-column field="ProductName" header-text="Product"></igc-text-column>
        <igc-numeric-column positive-prefix="$" field="BundlePrice" show-grouping-separator="true" header-text="Price" ></igc-numeric-column>
        <igc-numeric-column field="OrderItems" header-text="Order Items"></igc-numeric-column>
        <igc-numeric-column field="OrderValue" show-grouping-separator="true" header-text="Order Totals" positive-prefix="$"></igc-numeric-column>
        <igc-text-column field="Countries" header-text="Ship Country"></igc-text-column>
</igc-data-grid>
html

import { IgcColumnGroupDescription } from 'igniteui-webcomponents-grids';
import { IgcColumnSummaryDescription } from 'igniteui-webcomponents-grids'
import { SummaryOperand, SummaryCalculator, DefaultSummaryResult, IDataSource, ISummaryResult } from 'igniteui-webcomponents-core';

connectedCallback() {

    // Count Operand
    const productCount = new IgcColumnSummaryDescription();
    productCount.field = "ProductName";
    productCount.operand = SummaryOperand.Count;
    this.grid.summaryDescriptions.add(productCount);
    // Min Operand with formatting
    const priceMin = new IgcColumnSummaryDescription();
    priceMin.field = "BundlePrice";
    priceMin.operand = SummaryOperand.Min;
    priceMin.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
    this.grid.summaryDescriptions.add(priceMin);
    // Max Operand and formatting
    const priceMax = new IgcColumnSummaryDescription();
    priceMax.field = "BundlePrice";
    priceMax.operand = SummaryOperand.Max;
    priceMax.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
    this.grid.summaryDescriptions.add(priceMax);
    // Sum Operand
    const orderSum = new IgcColumnSummaryDescription();
    orderSum.field = "OrderItems";
    orderSum.operand = SummaryOperand.Sum;
    this.grid.summaryDescriptions.add(orderSum);
    // Average Operand and formatting
    const orderValueAvg = new IgcColumnSummaryDescription();
    orderValueAvg.field = "OrderValue";
    orderValueAvg.operand = SummaryOperand.Average;
    orderValueAvg.formatOverride = new Intl.NumberFormat('en-EN', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 });
    this.grid.summaryDescriptions.add(orderValueAvg);
}
ts

맞춤 요약

어떤 상황에서는 기본 요약 세트를 확장해야 할 수도 있습니다. 예를 들어, 열의 특정 값이 나타나는 횟수를 표시하려는 경우 이를 위해서는 사용자 정의 요약이 필요합니다.

아래 조각은 열에 나타나는 "USA" 값의 개수를 표시하는 방법을 보여줍니다.

import { IgcProvideCalculatorEventArgs } from 'igniteui-webcomponents-core';

onLoad() {

    const countries = new IgcColumnSummaryDescription();
    countries.field = "Countries";
    countries.operand = SummaryOperand.Custom;
    countries.provideCalculator = this.onProvideCalculator; //refer to class below
    this.grid.summaryDescriptions.add(countries);

}

onProvideCalculator(s: IgcColumnSummaryDescription, e: IgcProvideCalculatorEventArgs) {
    e.calculator = new CustomDomestic();
}

// Custom Calculator - calculates the count for all USA.
class CustomDomestic extends SummaryCalculator
{
    get displayName(): string {
        return "USA";
    }
    public usCountries: number;

    public beginCalculation(a: IDataSource, b: string): void {
        super.beginCalculation(a,b);
        this.usCountries = 0;
    }
    public endCalculation(): ISummaryResult {
       return new DefaultSummaryResult(this.propertyName, SummaryOperand.Custom, this.usCountries)
    }
    public aggregate(a: any): void {
       if (a.Countries === "USA")
       {
            this.usCountries++;
       }
    }
}
ts

API 참조

• IgcGridComponent
• groupSummaryDisplayMode
• summaryScope