Cell selection in Angular Grid component

20 Dec 20226 minutes to read

Cell Selection can be done through simple Mouse down or Arrow keys(up, down, left and right).

Grid supports two types of cell selection mode which can be set by using selectionSettings.cellSelectionMode. They are:

• Flow - The Flow value is set by default.
  Select range of cells between the start index and end index which includes in between cells of rows.
• Box - Select range of cells within the start and end column indexes which includes in between cells of rows within the range.

app.component.ts

import { Component, OnInit } from '@angular/core';
import { data } from './datasource';
import { SelectionSettingsModel } from '@syncfusion/ej2-angular-grids';

@Component({
    selector: 'app-root',
    template: `<ejs-grid [dataSource]='data' [selectionSettings]='selectionOptions' height='315px'>
                <e-columns>
                    <e-column field='OrderID' headerText='Order ID' textAlign='Right' width=120></e-column>
                    <e-column field='CustomerID' headerText='Customer ID' width=150></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                    <e-column field='ShipName' headerText='Ship Name' width=150></e-column>
                </e-columns>
                </ejs-grid>`
})
export class AppComponent implements OnInit {

    public data: object[];
    public selectionOptions: SelectionSettingsModel;

    ngOnInit(): void {
        this.data = data;
        this.selectionOptions = { cellSelectionMode: 'Box', type: 'Multiple', mode: 'Cell' };
    }
}

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule, PageService } from '@syncfusion/ej2-angular-grids';
import { EditService, ToolbarService, FilterService } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [EditService, ToolbarService, PageService, FilterService]
})
export class AppModule { }

main.ts

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Cell Selection requires the selectionSettings.mode to be Cell or Both and type should be Multiple.
type should be Multiple.

Toggle selection

The Toggle selection allows to perform selection and unselection of the particular row or cell or column. To enable toggle selection, set enableToggle property of the selectionSettings as true. If you click on the selected row or cell or column then it will be unselected and vice versa.

app.component.ts

import { Component, OnInit } from '@angular/core';
import { data } from './datasource';
import { SelectionSettingsModel } from '@syncfusion/ej2-angular-grids';

@Component({
    selector: 'app-root',
    template: `<ejs-grid [dataSource]='data' height='315px' [selectionSettings]='selectionOptions'>
                <e-columns>
                    <e-column field='OrderID' headerText='Order ID' textAlign='Right' width=120></e-column>
                    <e-column field='CustomerID' headerText='Customer ID' width=150></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                    <e-column field='ShipName' headerText='Ship Name' width=150></e-column>
                </e-columns>
                </ejs-grid>`
})
export class AppComponent implements OnInit {

    public data: object[];
    public selectionOptions: SelectionSettingsModel;

    ngOnInit(): void {
        this.data = data;
        this.selectionOptions = { type: 'Multiple', mode: 'Both' };
    }
}

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule, PageService } from '@syncfusion/ej2-angular-grids';
import { EditService, ToolbarService, FilterService } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [EditService, ToolbarService, PageService, FilterService]
})
export class AppModule { }

main.ts

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

If multi selection is enabled, then first click on any selected row (without pressing Ctrl key), it will clear the multi selection and in second click on the same row, it will be unselected.