Ng4-auto-complete NPM

ng4-auto-complete

Note - For Angular 5 please reffer to this [NG5-AUTO-COMPLETE](https://www.npmjs.com/package/ng5-auto-complete)

This Module can be use when you want Auto-Complete Functionality on your INPUT Tag in the Angular4 Enviroment.

You can use with Reactive Angular Forms or with simple forms with ngModel directive.

Installation -

        npm install --save ng4-auto-complete

What it provides is -

WORKS with REACTIVE-ANGULAR FORMS,NORMAL-FORMS,(ngModel)
RUN on Array of Strings Array<String> or an Objects Array<Object>.
Open the Auto-List on Number of Word-Length you have Typed. Default 0
How many List-Members to be shown from Matches. Default 15
What Should be the TEXT on NO RECORD FOUND. Default ''

Works On -

TAP or CLICK
TAB KEY
ENTER KEY
ON BLUR

How to Start with it -

Please include these scripts in your main index.html.

    <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
    <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
    <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>

Now Import the AutoCompleteModule in your main NgModule of your application

and insert this module in your imports array of NgModule.

  //main module
  
  import { AutoCompleteModule } from 'ng4-auto-complete';
  @NgModule({
      imports :[
          AutoCompleteModule
      ]
  })

Its time to Integrate this module in your HTML INPUT Tag

    <input id="list" [ng4-auto-complete]="list">

This will provide the list of 15 best match from provided list.

Here are the Extented features -

word-trigger -

This is use when you want to open list on perticular word count. It Accepts Number. Default value = 0;

Example- [word-trigger]="2"

list-length -

This is use when you want to set the length of list which will open. It Accepts Number. Default value = 15;

Example- [list-length]="10"

filterName -

Only use when you are providing object List as Array<Object>. which thing to filter from object and show that. [{ name:"hardy", hobby:"coding"},.....] , here if filterName is name then name is filtered and shown on input tag.

Example- filterName="name"

NOTE -

If you not provide the filtername on providing the array list of objects it will throw ERROR.

no-record-text -

This is use when you want to show when no record found.

Example - no-record-text="No Records Found!"

USED AS -

<input style="margin: 40px;" id="list"
[ng4-auto-complete]="countryList" 
[word-trigger]="2" [list-length]="10"
filterName="name" no-record-text="No Records Found!" >

Set Dynamic List -

For Dynamic List we can inject the Service i.e AutoCompleteService

in your component and set it when you get the list like this -

  import { AutoCompleteService } from 'ng4-auto-complete';
  
  export class YourComponent{ 

      constructor(public autoCompleteService: AutoCompleteService){ }

      //call this method when you get list from anywhere
      setList(list){
          this.autoCompleteService.setDynamicList(list);
          // this will log in console if your list is empty.
      }
  }

Update List -

For Update List we can inject the Service i.e AutoCompleteService

in your component and set it when you get the list like this -

  import { AutoCompleteService } from 'ng4-auto-complete';
  
  export class YourComponent{ 

      constructor(public autoCompleteService: AutoCompleteService){ }

      //call this method when you want to update list from anywhere
      //elementId ,is the id od input tag which you want to change

      updateList(list,elementId){
         this.autoCompleteService.updateList(list, elementId);
      }
  }