High Performance Angular Grid with Web Sockets

  Read full article on the Infragistics blog You may have come across the requirement to push data in real time to an Angular Grid. To push data to the browser, you need a technology called WebSocket. You can implement that using NodeJS or ASP.NET SignalR. For the purpose of this article, we will use…… Continue reading High Performance Angular Grid with Web Sockets

How to do Conditional Validation on valueChanges method in Angular Reactive Forms

Read full article on the Infragistics blog In this blog post, we will learn to use Angular Reactive Forms value change detection and enable conditional validation on basis of that. Learn How to Create Your First Angular Reactive Form here Let us say you have a Reactive Form created using FormBuilder class as shown below:…… Continue reading How to do Conditional Validation on valueChanges method in Angular Reactive Forms

Simplifying ViewChild and ContentChild in Angular

Read full article on the Infragistics blog In this blog post, we will learn about ViewChild and ContentChild in Angular. Essentially ViewChild and ContentChild are used for component communication in Angular. Therefore, if a parent component wants access of child component then it uses ViewChild or ContentChild. Any component, directive, or element which is part…… Continue reading Simplifying ViewChild and ContentChild in Angular

Step by Step creating Custom Pipe in Angular

Read full article on the Infragistics blog Angular pipes take data as input and transform it to your desired output. For example, using interpolation you are displaying name of the product. Now you want the product name always displayed in the uppercase. You can do this using Angular pipe uppercase. https://gist.github.com/debugmodedotnet/929abeb0c328af3e9a266b49c11a811c In above component, productName…… Continue reading Step by Step creating Custom Pipe in Angular

How to create Custom Validator for Angular Reactive Forms

Learn full article on the Infragistics blog In this blog post, we will learn to create custom validators in Angular Reactive Forms. If you are new to reactive forms, learn how to create your first Angular reactive form here. Let’s say we have a login form as shown in the listing below. Currently, the form…… Continue reading How to create Custom Validator for Angular Reactive Forms

Hosted 11th free Angular session

On 13 January 2018, geek97 hosted 11th free session on Angular in Gurgaon. You can find detail of meetup hereAround 35 senior Angular Developers attended the meetup and Dhananjay Kumar delivered the sessions. There were two sessions:Component Communications @Input @Output EventEmitterTemp Ref variable Reactive Forms FormControl FormGroupValidation Custom Validation You can learn in details about…… Continue reading Hosted 11th free Angular session

Understanding @Output and EventEmitter in Angular

  Read full article on the Infragistics blog Angular is based on a one-directional data flow and does not have two-way data binding. So, how do you get a component to emit an event to another component? In Angular, a component can emit an event using @Output and EventEmitter. Both are parts of the @angular/core.…… Continue reading Understanding @Output and EventEmitter in Angular

What are @HostBinding() and @HostListener() in Angular?

Read full article on the Infragistics blog To understand @HostListener and @HostBinding, you should have basic knowledge about directives in Angular. There are three types of directives in Angular: Component Attribute Directive Structural Directive The basic difference between a component and a directive is that a component has a template, whereas an attribute or structural…… Continue reading What are @HostBinding() and @HostListener() in Angular?