angular - ngOnInit not called on first request -


i facing weird issue in application.
whenever i'm routing 1 component ngoninit() not called due guess value countrieslist control not initialized. because when reload page pressing f5 ngoninit() called , value in countrieslist control rendered, facing issue single component, in rest of application ngoninit() called on every request. below code snippet: 

import { component, oninit } '@angular/core'; import { router,activatedroute } '@angular/router'; import { formbuilder, formgroup, validators, formcontrol, reactiveformsmodule } '@angular/forms'; import { validator } "../shared/validators/validator"; import { authservice } 'angular2-social-login'; import { loginservice } '../login/login.service'; import { commonlogin } '../shared/commonservices/commonlogin.service'; import { userdata, storeuserdata } "../shared/commonservices/userdata.service";  @component({     selector: 'facebooklogin',     templateurl: './facebook-login.html',     providers: [loginservice, commonlogin,userdata,storeuserdata] }) export class facebooklogincomponent implements oninit {     ngoninit() {         debugger;   this.countrydetails();     }     socialform: formgroup;     formerror: any;     countrieslist: any;      constructor(private router: router, private activatedroute: activatedroute , private fb: formbuilder,         public _auth: authservice, private loginservice: loginservice, private commonlogin: commonlogin,         private userdata: userdata, private storeuserdata: storeuserdata) {         this.countrydetails();     }      countrydetails() {         this.commonlogin.countrydetails().subscribe(data => this.populatecountrylist(data), error => console.log(error));     }     populatecountrylist(data: any) {         var countriesdetails = json.parse(data._body).data.countries;         this.countrieslist = countriesdetails;     }

below route call 

this.router.navigate(['./facebooklogin']);

please let me know wrong below code, have checked several options provided on this, this , other websites nothing worked

binding countrylist code: 

<form class="loginform" id="socialform" [formgroup]="socialform" (ngsubmit)="registeruser(socialform.value)" #f="ngform"         novalidate>         <select class="form-control select" [formcontrol]="socialform.controls.country" [class.controlerror]="socialform.controls.country.haserror('required') && f.submitted">               <option *ngfor="let c of countrieslist" [ngvalue]="c">{{c.country_name}}</option>             </select>       </form>


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more