Recent questions tagged Angular

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angular - Why Angular2 routerLinkActive sets active class to multiple links?

I'm trying to implement routerLinkActive to my app but i'm facing the issue that it's sets class active to ... as explained in angular docs. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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716 views

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angular - Resolve Type<> of component from string in angular2

Is it possible to get type of component (Type<T>) from string value? Smth like: let typeStr: string = ' ... resolveType(typeStr); // actual type See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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774 views

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angular - Property has no initializer and is not definitely assigned in the constructor

I am getting an error when I give export class UserComponent implements OnInit { user:User; constructor(){ } ... it shows me this error. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - how to disable angular2 change detection for 3rd party libraries

I have google maps which triggers 100+ times per second change detection. how to disable change detection for this. Click ... ', this.i++); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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827 views

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angular - How to upload a CSV file and read them using angular2?

i have a requirement of uploading a .CSV file and read them inside my component, i have gone through this blog ... help me on this? thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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908 views

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angular - How to display using [displayWith] in AutoComplete Material2

I have an array that comes from my API and I'm using Material2#AutoComplete to filter this... it's working so ... errors). Here's the PLUNKER. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Angular2. How can I check if an observable is completed?

In my page there is a button that generates a report. That report needs data that is loaded using a http ... the Observable API if possible. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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828 views

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angular - How to use Angular2 templates with *ngFor to create a table out of nested arrays?

Given the following array in component property groups: [ { "name": "pencils", "items": ["red pencil","blue ... to facets and fragments in JSF. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Multiple mat-table with MatSort within the same component

I have 2 material 2 tables in the same component with sorting. I cannot find a way to assign the MatSort directive ... </mat-row> </mat-table> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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801 views

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angular - Trigger update of component view from service - No Provider for ChangeDetectorRef

I would like to udpate my application view, triggered by events from service. One of my services injects the ... it in the declarations array. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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891 views

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angular - Template parse errors: 'mat-icon' is not a known element

I'm working with Angular CLI and angular material v.5.2.5 and trying to use mat-icon-button but such an error ... }) export class AppModule { } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - NullInjectorError: No provider for MatDialogRef

I can't inject MatDialogRef as it described in documentation: https://material.angular.io/components/dialog/ ... export class AccountModule {} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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971 views

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angular - Ionic 3 refresh side menu after login

I need to display side menu items according to the role of the user. so I check in app.html if the page ... according to the logged in user. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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875 views

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angular - Ngrx Store Resets after browser refresh. How to make the application preserve the state?

I Dispatch a action from one component this.store.dispatch({type : STORE_TEAMCREST , payload : team.crestURI}); ... it works on browser refresh? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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660 views

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angular - How can I easily concatenate typescript variable with string in html tag?

This is my html code with ionic 2 <ion-item *ngFor="let job of allFreeJobs;let elementid=index"> <p> <span id ... ? This is not working for me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

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angular - SCSS Import Relative to Root

I'm in the process refactoring an Angular application and as I'm moving components around to new directory locations ... one less thing, right? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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angular - How to make a formControl readonly

How to make a formControl in angular readonly I know i can do it in html like <input type="text" formControlName=" ... i.e in a model driven way See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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994 views

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angular - BrowserModule has already been loaded Error

I've updated my application to RC6 and now i keep getting this error: zone.js:484 Unhandled Promise ... any help is greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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617 views

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angular - Prevent a native browser event ( like scroll ) from firing change detection

I'm binding an scroll event to capture the scroll and do something with it, I've ... : this.renderer.listenGlobalButDontFireTheChangeDetection See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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600 views

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angular - How can I speed up ngFor for a large array?

I'm working on a Pokedex site and thanks to there now being 721 Pokemon an ngFor is taking a long time to display ... in Chrome 51.0.2704.79 m See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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920 views

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angular - Cannot read property 'native-element' of undefined

I am using ionic 2. I need to get HTML element value. Actually, I used viewchild. Here is my html ... property 'nativeElement' of undefined. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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angular - How can I access an activated child route's data from the parent route's component?

const appRoutes: Routes = [ { path: 'parent', component: parentComp, data: { foo: 'parent data' }, children ... from a parent route's component? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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645 views

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angular - Min and max value of input in angular4 application

I have an angular4 application with a form. In this one I have an input to enter a percentage. So, I want to ... you know how I can do this ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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596 views

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angular - Pass variable to custom component

I have my custom component: @Component({ selector: 'my-custom-component', templateUrl: './my-custom-component. ... this in my component code? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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557 views

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angular - Create a dropdown component

I want to create a dropdown menu using Angular 2, but I'm not sure how to do it in the "Angular 2 way ... , or a right click context menu. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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579 views

1 answer

angular - Upload image with HttpClient

Problem I try to upload an image with angular's HttpClient to API Content-Type: multipart/form-data (angular v4+) ... 's ability to do it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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726 views

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angular - Is angular2 mvc?

I have worked in Angular 1.It clearly had a controller which acted as a mediator between View and Model. I realized ... still call it as an MVC. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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626 views

1 answer

angular - What are typescript typings?

I just started playing with angular 2, and I saw that many projects that are available on the web have a ... are needed or helpful. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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