Scrolling in Angular Grid component

18 Nov 202215 minutes to read

The scrollbar will be displayed in the grid when content exceeds the element width or height. The vertical and horizontal scrollbars will be displayed based on the following criteria:

  • The vertical scrollbar appears when the total height of rows present in the grid exceeds its element height.
  • The horizontal scrollbar appears when the sum of columns width exceeds the grid element width.
  • The height and width
    are used to set the grid height and width, respectively.

The default value for height and width is auto.

Set width and height

To specify the width and height
of scroller in pixel, set the pixel value as number.

import { Component, OnInit } from '@angular/core';
import { data } from './datasource';

@Component({
    selector: 'app-root',
    template: `<ejs-grid [dataSource]='data' height=315 width=400>
                <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='EmployeeID' headerText='Employee ID' textAlign='Right' width=120></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                    <e-column field='ShipCountry' headerText='Ship Country' 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[];

    ngOnInit(): void {
        this.data = data;
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Responsive with parent container

Specify the width and height as 100% to make the grid element fill its parent container.
Setting the height to 100% requires the grid parent element to have explicit height.

import { Component, OnInit } from '@angular/core';
import { data } from './datasource';

@Component({
    selector: 'app-root',
    template: `<ejs-grid [dataSource]='data' height='100%' width='100%'>
                <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='EmployeeID' headerText='Employee ID' textAlign='Right' width=120></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                    <e-column field='ShipCountry' headerText='Ship Country' 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[];

    ngOnInit(): void {
        this.data = data;
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

You can make the Grid column headers remain fixed while scrolling by using the enableStickyHeader property.

In the below demo, the Grid headers will be sticky while scrolling the Grid’s parent div element.

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

@Component({
    selector: 'app-root',
    template: `<div style='height:350px;'>
                <ejs-grid #grid [dataSource]='data' enableStickyHeader='true'>
                <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='EmployeeID' headerText='Employee ID' textAlign='Right' width=120></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                </e-columns>
               </ejs-grid>
               </div>`
})
export class AppComponent implements OnInit {

    public data: object[];
    @ViewChild('grid')
    public grid: GridComponent;

    ngOnInit(): void {
        this.data = data;
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Scroll To Selected Row

You can scroll the grid content to the selected row position by using the rowSelected event.

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

@Component({
    selector: 'app-root',
    template: `<ejs-numerictextbox #numeric format='N' min='0' placeholder='Enter index to select a row'
                width=200 [showSpinButton]='false' (change)='onchange($event)'></ejs-numerictextbox>
    <ejs-grid #grid [dataSource]='data' height='315' width='100%' (rowSelected)='rowSelected($event)'>
                <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='EmployeeID' headerText='Employee ID' textAlign='Right' width=120></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                </e-columns>
               </ejs-grid>`
})
export class AppComponent implements OnInit {

    public data: object[];
    @ViewChild('grid') public grid: GridComponent;
    @ViewChild('numeric') public numeric;

    ngOnInit(): void {
        this.data = data;
    }
    onchange() {
        this.grid.selectionModule.selectRow(parseInt(this.numeric.getText(), 10));
    }
    rowSelected(args: RowSelectEventArgs) {
        const rowHeight: number = this.grid.getRows()[this.grid.getSelectedRowIndexes()[0]].scrollHeight;
        this.grid.getContent().children[0].scrollTop = rowHeight * this.grid.getSelectedRowIndexes()[0];
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';
import { NumericTextBoxComponent } from '@syncfusion/ej2-angular-inputs';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent, NumericTextBoxComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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

Hide the scrollbar when the content is not overflown

You can hide the scrollbar of Grid content by using the hideScroll method when the content doesn’t overflow its parent element.

In the following sample, we have invoked the hideScroll method inside the dataBound event.

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

@Component({
    selector: 'app-root',
    template: `<ejs-grid #grid [dataSource]='data' height='315' width='100%' (dataBound)='dataBound($event)'>
                <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='EmployeeID' headerText='Employee ID' textAlign='Right' width=120></e-column>
                    <e-column field='ShipCity' headerText='Ship City' width=150></e-column>
                    <e-column field='ShipCountry' headerText='Ship Country' 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[];
    @ViewChild('grid')
    public grid: GridComponent;

    ngOnInit(): void {
        this.data = data.slice(0, 2);
    }
    dataBound(): void {
        this.grid.hideScroll();
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { GridModule } from '@syncfusion/ej2-angular-grids';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        GridModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

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