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Dropdownlist With Dynamic Itemtemplate For Angular

Sample date Updated on Apr 16, 2026
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dropdownlist ej2 ej2-dropdown itemtemplate programmatically template

Repository Description

A comprehensive guide for implementing dynamic itemTemplate in the Syncfusion DropDownList component for Angular applications using Angular's createComponent method and dynamic template loading.

Overview

This repository demonstrates how to set the itemTemplate programmatically for the DropDownList component in Angular. The project shows how to dynamically load an itemTemplate by creating a component instance and assigning it to the DropDownList's itemTemplate property, enabling flexible and reusable template configurations.

Features

  • Dynamic ItemTemplate Loading: Programmatically load and assign item templates at runtime

  • Component Factory Pattern: Utilize Angular's ComponentResolver and createComponent for dynamic template creation

  • Template Customization: Customize dropdown item appearance using dynamic component templates

  • Runtime Template Assignment: Assign templates after component initialization using ngAfterViewInit

  • Angular Integration: Full support for Angular dependency injection and component lifecycle

Project Prerequisites

Ensure you have the following installed on your machine:

  • Node.js - Latest version recommended

  • Angular CLI - For Angular project development

  • Basic knowledge of Angular components and templates

  • Syncfusion EJ2 DropDownList package for Angular

How It Works

To load an itemTemplate in the DropDownList component dynamically, we need to use createComponent to load the template as a new component and assign its itemTemplate instance to the DropDownList's itemTemplate property.

Implementation Example


ngAfterViewInit() {        

    let componentFactory = this.componentResolver.resolveComponentFactory(Newcomponent);

    const ref = this.viewContainerRef.createComponent(componentFactory);

    this.ddl.itemTemplate = ref.instance.itemTemplate;

}

This code snippet demonstrates:

  1. Resolving the component factory for the template component

  2. Creating a component instance using createComponent

  3. Assigning the created component's itemTemplate to the DropDownList

Installation

To install all dependent packages, use the below command:


npm install

This command installs all required dependencies including Angular, Syncfusion EJ2, and other necessary packages.

Run the Application

To compile and run the source files, use the below command:


npm start

The application will start the development server and automatically reload when you make changes to the source files.

Key Implementation Steps

  1. Import necessary Angular modules: ComponentFactoryResolver, ViewContainerRef

  2. Create a component to be used as the itemTemplate

  3. Inject ComponentFactoryResolver and ViewContainerRef into your component

  4. Use createComponent to dynamically load the template component

  5. Assign the created component instance to the DropDownList's itemTemplate property

Documentation and Resources

For more information about implementing dynamic templates with EJ2 DropDownList:

  • Refer to the Syncfusion EJ2 DropDownList documentation for detailed API references

  • Check Angular documentation for ComponentFactory and dynamic component creation patterns

  • Review Angular lifecycle hooks documentation for understanding ngAfterViewInit timing

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