Select grid rows based on certain condition in Angular Grid component

6 Sep 20225 minutes to read

You can select the specific row in the grid based on a certain condition by using the selectRows method in the dataBound event of Grid.

In the below demo, we have selected the grid rows only when EmployeeID column value greater than 3.

app.component.ts

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

@Component({
    selector: 'app-root',
    template: `<div id="GridParent">
                    <ejs-grid #Grid [dataSource]='data' allowPaging='true' [selectionSettings]='selectionOptions'
                    (rowDataBound)='rowDataBound($event)' (dataBound)='dataBound($event)' height='273px'>
                        <e-columns>
                            <e-column field='OrderID' headerText='Order ID' textAlign='Right' isPrimaryKey='true' width=100></e-column>
                            <e-column field='CustomerID' headerText='Customer ID' width=120></e-column>
                            <e-column field='EmployeeID' headerText='Employee ID' textAlign= 'Right' width=120></e-column>
                            <e-column field='ShipCity' headerText='Ship City'  width=120></e-column>
                            <e-column field='ShipName' headerText='Ship Name' width=150></e-column>
                        </e-columns>
                    </ejs-grid>
               </div>`
})
export class AppComponent implements OnInit {
    public data: object[];
    @ViewChild('Grid') public grid: GridComponent;
    public selectionOptions: SelectionSettingsModel;
    public selIndex: number[] = [];
    ngOnInit(): void {
        this.data = data;
        this.selectionOptions = { type: 'Multiple' };
    }
    public rowDataBound(args): void {
        const EmployeeID = 'EmployeeID';
        if (args.data[EmployeeID] > 3) {
            this.selIndex.push(parseInt(args.row.getAttribute('aria-rowindex'), 10));
        }
    }
    public dataBound(args): void {
        if (this.selIndex.length) {
            this.grid.selectRows(this.selIndex);
            this.selIndex = [];
        }
    }
}

app.module.ts

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

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PageService,
                SortService,
                FilterService,
                GroupService]
})
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);