typescript - Why does my bootstrap navbar break my Google Map in Angular 2? -


i loading google map, second added bootstrap navbar app.component template, started receiving error: 

error_handler.js:54 exception: uncaught (in promise): error: error in ./maincomponent class maincomponent - inline template:0:0 caused by: cannot read property 'firstchild' of null.

my map id matched documentgetelementbyid (which seems common reason why people have problem), that's not problem. map loads long navbar not present.

main component 

<app-map></app-map>

app component 

<app-navbar><app-navbar> <router-outlet></router-outlet>

map template 

<div class="container-fluid">   <div class="row">  <!-- map --> <div class="map-container col-xs-12">          <div id="map">          </div>  </div>   </div> </div>

map component 

import { component, oninit } '@angular/core'; import { router, routermodule, activatedroute } '@angular/router';  declare var google: any;  @component({   selector: 'app-map',   templateurl: './map.component.html',   styleurls: ['./map.component.css'] })  export class mapcomponent implements oninit {    // google.charts.load('current', {'packages':['geochart']});   //     google.charts.setonloadcallback(drawregionsmap);    constructor() { }     ngoninit() {        let mapoptions = {             center: new google.maps.latlng(0,0),             zoom: 2         };          let map = new google.maps.map(document.getelementbyid('map'), mapoptions);    }  }

nav component 

import { component, oninit } '@angular/core'; import { routermodule } "@angular/router";  @component({   selector: 'app-navbar',   templateurl: './navbar.component.html',   styleurls: ['./navbar.component.css'] }) export class navbarcomponent implements oninit {    constructor() { }    ngoninit() {   }  }

nav template 

<nav class="navbar navbar-default">   <div class="container-fluid">     <!-- brand , toggle grouped better mobile display -->     <div class="navbar-header">       <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">         <span class="sr-only">toggle navigation</span>         <span class="icon-bar"></span>         <span class="icon-bar"></span>         <span class="icon-bar"></span>       </button>       <a class="navbar-brand" href="#">aether news</a>     </div>      <!-- collect nav links, forms, , other content toggling -->     <!-- <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">      </div> -->   </div> </nav>


Comments

Post a Comment

Popular posts from this blog

c# - Update a combobox from a presenter (MVP) -

i using mvp in project, new in mvp. have 2 comboboxes. when select option in combobox, combobox should filled new data. this action in presenter. view 'view1' in presenter, , introduced combobox1 , combobox2 properties in 'view1', because need 'datasource', 'displaymember', 'valuemember' , 'refresh()' in method below. but, when using pattern, enough send property like public string combobox2 { { return combobox1.selectedvalue.tosstring(); } } into presenter not whole combobox. how can solve problem? public void onselectedindexchangedcombobox1() { if (view1.combobox1.selectedindex == -1) { return; } datatable dt = tools.getdatatable("a path"); var query = (from o in dt.asenumerable() o.field<string>("afield") == farmerview.combobox1.selectedvalue.tostring() orderby o.field<string>("anotherfield") select...
Read more

How to understand 2 main() functions after using uftrace to profile the C++ program? -

i trying uftrace profile following simple c++ program: #include <iostream> class { public: a() {std::cout << "a created" << std::endl;} ~a() {std::cout << "a destroyed" << std::endl;} }; int main() { a; return 0; } the profile result this: # uftrace a.out created destroyed # duration tid function 2.026 [ 4828] | __cxa_atexit(); [ 4828] | main() { [ 4828] | __static_initialization_and_destruction_0() { 89.397 [ 4828] | std::ios_base::init::init(); 0.768 [ 4828] | __cxa_atexit(); 93.029 [ 4828] | } /* __static_initialization_and_destruction_0 */ 94.425 [ 4828] | } /* main */ [ 4828] | main() { [ 4828] | a::a() { 11.104 [ 4828] | std::operator <<(); 10.825 [ 4828] | std::basic_ostream::operator <<(); 24.514 [ 4828] | } /* a::a */ [ 4828] | a::~a() { 0.978 [ 4828] | ...
Read more

How to put a lock and transaction on table using spring 4 or above using jdbcTemplate and annotations like @Transactional? -

i trying put lock on table while writing on table , if happened in between roll-back . trying convert below code lock table test_g1 read; lock table test_g write; -- begin; start transaction; insert test_g1 values(143); insert test_g values(145); select * test_g1; select * test_g; rollback; select * test_g; unlock tables; how convert above code @transactional spring jdbctemplate code? @transactional(rollbackfor={dataaccessexception.class}) public void test(){ jdbctemplate.execute("insert test1 (id, nam) values (4, 'a')"); throw new dataaccessexception("error") { }; } here trying throw error, insert statement should rollback it's not happening . thanks edit-1 attaching code , doing in jdbcdaoimpl.java , mentioned problem comment above test() . app.java package com.cgiri.javabrains.spring4; import org.springframework.beans.factory.annotation.autowired; import org.springframework.context.applic...
Read more