use template create view (和 createComponent 大同小异,Dynamic Component文章里学过了) append view (ViewContainerRef 在Dynamic Component文章里学过了) Template Context 上面例子缺少了一个重要的角色 -- Template Context (a.k.a ViewModel)。 我们拿一个组件来观摩 Template binding with Template Context = ...
import{Component,OnDestroy,OnInit,TemplateRef,Input}from'@angular/core';/// 主页面@Component({selector:'app-root',template:`Angular's ngTemplateOutlet 完整示意---我是主页 <app-content [dynamicRef]="usedByContent"></app-content> <ng-template #usedByContent let-name let-valueInContent=valueI...
这两个函数的源码我们在Dynamic Component文章中研究过, 它们也是 ViewContainerRef 内部使用的。 app.component.js 在renderView 阶段,@if、@else if、@else 分别会创建三个 ng-template。 在refreshView 阶段,会执行 ɵɵconditional 函数。第二个参数依据判断条件它会渲染第几个 ng-template。 ɵɵconditio...
import{Component}from'@angular/core';@Component({selector:'example-app',template:`<pdf-viewer [src]="pdfSrc"[render-text]="true"[original-size]="false"style="width: 400px; height: 500px"></pdf-viewer>`})exportclassAppComponent{pdfSrc="https://vadimdez.github.io/ng2-pdf-viewer/assets...
* **common:** avoid mutating context object in NgTemplateOutlet ([#40360](https://github.com/angular/angular/issues/40360)) ([d3705b3](https://github.com/angular/angular/commit/d3705b3284113f752ee05e9f0d2f6e75c723ea5b)), closes [#24515](https://github.com/angular/angular/issues/2451...
Understanding template reference variables Template variable assignment Using the @ViewChild decorator The @ViewChildren decorator Integrating WorkoutAudioComponent Exposing WorkoutRunnerComponent events The @Output decorator Eventing with EventEmitter Raising events from WorkoutRunnerComponent Component communication ...
Whenever a <ng-template> is applied to a DynamicFormArrayModel, NgTemplateOutletContext is internally bound to the associated DynamicFormArrayGroupModel. That means you can access the group object and it's properties by either declaring a local default template variable or individual local template...
If you intended to read the template variable, do not use this.. changes to CSS selectors parsing where introduced, mainly to: pseudo selectors :where() and :is(), parsing of :host and host-context, parsing selectors within pseudo selector arguments (for instance comma separated selectors)....
compiler: throw error for duplicate template references (#40538) (7e0ff8c), closes #40536 compiler-cli: don't crash when we can't resolve a resource (#40660) (95446fb), closes angular/vscode-ng-language-service#1079 core: properly move embedded views of dynamic component's projectable ...
ask yourself the question: “How will this change affect the performance of my application?” This applies to any template bindings you are adding to your html, manual triggers on the digest cycle and event handlers and watchers you may need to clean up. Never make performance an afterthought...