DataList in Angular

Question

I have a <datalist> and <select> as follows:

Updated:

Example 1:

<input type="text"  list="codes" [(ngModel)]="codeValue" (change)="saveCode(codeValue)">
<datalist id="codes">
  <option *ngFor="let c of codeList" [value]="c.code" >{{c.name}}</option>
</datalist>

<select type="text"  list="codes" [(ngModel)]="codeValue1" (change)="saveCode(codeValue)">
  <option *ngFor="let c of codeList" [value]="c.code" >{{c.name}}</option>
</select>

codeList Array in component.ts

    codeList = [
    { code: 'abcdhe568dhjkldn', name: 'item1' },
    { code: 'ksdkcs7238t8cds', name: 'item2' },
    { code: 'kascggibebbi', name: 'item3' }
  ];

DataList is showing both name (c.name) and value (c.code) in the options and storing whatever is present in value whereas select is showing name (c.name) and storing value(c.code).

Behavior of datalist

Behavior of select

Example 2:

<datalist id="codes">
<option *ngFor = "let i of [1,2,3,4]" [value]="i">{{i-1}}</option>
</datalist>

{{a}}

I want to show the value of i-1 in the suggestion box but bind the variable 'a' with i.

Existing Solution in HTML

From this post Show datalist labels but submit the actual value I see that we can use "data-value" to acheive the functionality in HTML. How can I achieve the same functionality in Angular.

Please help!

Thanks in advance.

Answer 1

Try Like this....

html File

<input type="text"  list="codes" [(ngModel)]="codeValue" (change)="saveCode($event)">
<datalist id="codes">
<option *ngFor="let c of codeList" [value]="c.name" >{{c.name}}</option>
</datalist>

ts File

 codeList = [
{ code: 'abcdhe568dhjkldn', name: 'item1' },
{ code: 'ksdkcs7238t8cds', name: 'item2' },
{ code: 'kascggibebbi', name: 'item3' }
];

 public saveCode(e): void {
let name = e.target.value;
let list = this.codeList.filter(x => x.name === name)[0];
console.log(list.id);
}