Use for questions about Angular 2+ directives
Questions tagged [angular2-directives]
1806 questions
0
votes
3 answers
Angular2,Typescript:How to insert a key:value pair at a PARTICULAR index in an array?
I want to insert a key value pair at a particular index in an array.How do I do that ?
this is my code so far:
this.quiz.push(
{
"question-no":this.no,
"Ans":this.ans
}
I need it in that way because this is to store the choice selected by the…
Impromptu_Coder
- 425
- 3
- 7
- 27
0
votes
1 answer
Displaying static content with angular2
Please forgive the newbie question; I'm just starting out with angular2. I've made it through the angular heroes demo and understand how components work, how to connect data to html, etc.
But what if I have a piece of static html that I want to…
EmmyS
- 11,892
- 48
- 101
- 156
0
votes
1 answer
How to change navigation bar name and icons dynamically on each page based on url ? Angular 2
I need to change the navigation bar names and icons dynamically based on the page URL.
Here is my code:
0
votes
1 answer
(click) event throwing Error in angular2, typescript
(click) event in typescript causes error given below.
EXCEPTION: Error during evaluation of "click"
ORIGINAL EXCEPTION: TypeError: Cannot read property 'appendChild' of undefined
angular2.dev.js:23877 ORIGINAL STACKTRACE:
angular2.dev.js:23877…
Zeeshan Malik
- 627
- 1
- 14
- 31
0
votes
1 answer
Angular2,Ionic2: How to do 2way binding for radio button in nested *ngfor using ngModel?
I've my API in JSON in the following format.
I want to display this in the form of question & choices format. I'm trying to display the choices using radio buttons. But my ngModel is not working. I want to access the whole object of the selected…
Impromptu_Coder
- 425
- 3
- 7
- 27
0
votes
4 answers
ngIf in angular 2 not working
Sreekar Sree
- 404
- 5
- 14
0
votes
0 answers
Clicking outside an element directive won't work for more than one instance. How to improve it?
I'm using this nice directive to catch ouאside click of a table:
@Directive({
selector: '[clickOutside]'
})
export class ClickOutsideDirective {
constructor(private _elementRef: ElementRef) {}
@Output()
public clickOutside = new…
AngularOne
- 2,760
- 6
- 32
- 46
0
votes
2 answers
How to generate textarea dynamically when checkbox is checked in angular2
I am new to Angular2, trying to generate textarea dynamically when checkbox is checked and delete textarea when checkbox is unchecked in angular2., Is there any better solution? thanks in advance.
Rajesh Selvaraj
- 3
- 2
0
votes
0 answers
@input only updating one component variable in angular2
I have two components.
Project calendar view component - parent
Project list view component - child for project calendar
In Project calendar I have variable like
@Input() projects : Project[] = [];
In Project list view component I have…
Govinda raj
- 613
- 3
- 16
- 31
0
votes
2 answers
How do I subscribe to the setItems$ Observable in angular-2-local-storage
I'm using angular-2-local-storage which has an observable of setItems$ that I'm trying to... Observe, with the following code in a directive:
/** app-theme.directive.ts **/
import { Directive, ElementRef, Input } from '@angular/core';
import {…
Fewster
- 100
- 1
- 1
- 10
0
votes
1 answer
_this.files.filter is not a function ng2-uploader angular2 file upload
I am newbie to Angular2 and Implementing file upload in Angular2 using ng2-uploader module.
the uploading is working fine but i am getting below errors on console.
can any one help me sort out this
After file uploading I am getting the console error…
Chinna M
- 415
- 2
- 4
- 17
0
votes
0 answers
Directives Angular 4 with JQuery Library does not work
I use a JQuery Library (iCheck) and I want to do a directive for use it in my html component but it does not work ..
My code :
Directive.ts
import { Directive, ElementRef, HostListener, Input, AfterViewInit } from '@angular/core';
declare var…
user1814879
- 984
- 6
- 23
- 49
0
votes
0 answers
angular 2 NgIf hides ever, even observable will get from null to object
I would like to show the something only if the user is logged in. The user is an observable and to show/hide I would like to use NgIf.
But the NgIf hides the content forever, even I see could verify the user changed from null to an…
mnewmedia
- 485
- 1
- 6
- 20
0
votes
2 answers
How can i emit a string in service and get in component
I want to emit a string when the util.service.ts handled some errors, so that i can get this message in app.component.ts and show it, but i can not subscribe the emitter.
this is my code, but it do not work:
in util.service.ts:
export class…
Russell Abraham
- 1
- 4
0
votes
1 answer
Angular 2 select option State
I am using select2(https://github.com/NejcZdovc/ng2-select2.) in my Angular 2 application. The form is based on reactive/Model based form.
I want to know how to activate its different states(dirty,touched,pristine) for the select option. The…
ZAJ
- 793
- 3
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