Customize the icon for column menu in Angular Treegrid component

27 Sep 20233 minutes to read

You can customize the column menu icon by overriding the default Tree Grid class .e-icons.e-columnmenu with a custom property content as mentioned below,

    .e-treegrid .e-columnheader .e-icons.e-columnmenu::before {
        content: "\e903";
    }

In the below sample, Tree Grid is rendered with a customized column menu icon.

app.component.ts

import { Component, OnInit, ViewChild, ViewEncapsulation } from '@angular/core';
import { projectData } from './datasource';
import { TreeGridComponent, ColumnMenuService } from '@syncfusion/ej2-angular-treegrid';

@Component({
    selector: 'app-container',
    styleUrls: ['./app.component.css'],
    encapsulation: ViewEncapsulation.None,
    providers: [ColumnMenuService],
    template: `<ejs-treegrid #treegrid [dataSource]='data' idMapping='TaskID' parentIdMapping='parentID' [treeColumnIndex]='1' [height]='315' showColumnMenu=true>
        <e-columns>
            <e-column field='TaskID' headerText='Task ID' width='70' textAlign='Right'></e-column>
            <e-column field='TaskName' headerText='Task Name' width='100' ></e-column>
            <e-column field='StartDate' headerText='Start Date' width='90' format="yMd" textAlign='Right' ></e-column>
            <e-column field='EndDate' headerText='End Date' width='90' format="yMd" textAlign='Right'></e-column>
            <e-column field='Duration' headerText='Duration' width='90' textAlign='Right'></e-column>
            <e-column field='Priority' headerText='Priority' width='90'></e-column>
        </e-columns>
    </ejs-treegrid>`,
})
export class AppComponent implements OnInit {

    public data: Object[] = [];

    ngOnInit(): void {
        this.data = projectData;
    }

}

app.module.ts

import { NgModule,ViewChild } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { TreeGridModule } from '@syncfusion/ej2-angular-treegrid';
import { PageService, SortService, FilterService } from '@syncfusion/ej2-angular-treegrid';
import { AppComponent } from './app.component';
import {ButtonModule} from '@syncfusion/ej2-angular-buttons';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        TreeGridModule,
        ButtonModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [PageService,
                SortService,
                FilterService]
})
export class AppModule { }

main.ts

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

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

You can refer to our Angular Tree Grid feature tour page for its groundbreaking feature representations. You can also explore our Angular Tree Grid example to knows how to present and manipulate data.