填写这份《一分钟调查》，帮我们（开发组）做得更好！去填写Home
API 参考手册
API > @angular/common

NgTemplateOutlet

根据一个提前备好的 TemplateRef 插入一个内嵌视图。

Inserts an embedded view from a prepared TemplateRef.

查看"说明"...

NgModule

选择器

属性

属性说明
@Input()
ngTemplateOutletContext: Object | null

A context object to attach to the EmbeddedViewRef. This should be an object, the object's keys will be available for binding by the local template let declarations. Using the key $implicit in the context object will set its value as default.

@Input()
ngTemplateOutlet: TemplateRef<any> | null

A string defining the template reference and optionally the context object for the template.

说明

你可以通过设置 [ngTemplateOutletContext] 来给 EmbeddedViewRef 附加一个上下文对象。 [ngTemplateOutletContext] 是一个对象，该对象的 key 可在模板中使用 let 语句进行绑定。

You can attach a context object to the EmbeddedViewRef by setting [ngTemplateOutletContext]. [ngTemplateOutletContext] should be an object, the object's keys will be available for binding by the local template let declarations.

<ng-container *ngTemplateOutlet="templateRefExp; context: contextExp"></ng-container>
      
      <ng-container *ngTemplateOutlet="templateRefExp; context: contextExp"></ng-container>

在上下文对象中使用 $implicit 这个 key 会把对应的值设置为默认值。

Using the key $implicit in the context object will set its value as default.

例子

Example

@Component({ selector: 'ng-template-outlet-example', template: ` <ng-container *ngTemplateOutlet="greet"></ng-container> <hr> <ng-container *ngTemplateOutlet="eng; context: myContext"></ng-container> <hr> <ng-container *ngTemplateOutlet="svk; context: myContext"></ng-container> <hr> <ng-template #greet><span>Hello</span></ng-template> <ng-template #eng let-name><span>Hello {{name}}!</span></ng-template> <ng-template #svk let-person="localSk"><span>Ahoj {{person}}!</span></ng-template> ` }) export class NgTemplateOutletExample { myContext = {$implicit: 'World', localSk: 'Svet'}; }
      
      
  1. @Component({
  2.   selector: 'ng-template-outlet-example',
  3.   template: `
  4.     <ng-container *ngTemplateOutlet="greet"></ng-container>
  5.     <hr>
  6.     <ng-container *ngTemplateOutlet="eng; context: myContext"></ng-container>
  7.     <hr>
  8.     <ng-container *ngTemplateOutlet="svk; context: myContext"></ng-container>
  9.     <hr>
  10.     
  11.     <ng-template #greet><span>Hello</span></ng-template>
  12.     <ng-template #eng let-name><span>Hello {{name}}!</span></ng-template>
  13.     <ng-template #svk let-person="localSk"><span>Ahoj {{person}}!</span></ng-template>
  14. `
  15. })
  16. export class NgTemplateOutletExample {
  17.   myContext = {$implicit: 'World', localSk: 'Svet'};
  18. }

方法

ngOnChanges()

ngOnChanges(changes: SimpleChanges)
      
      ngOnChanges(changes: SimpleChanges)
参数
changes SimpleChanges