Angular2树复选框与EventEmitter

Question

我有树视图有儿童复选框的问题。所以，问题是我从事件发射器获取嵌套的东西。请参阅截图和代码。

这是我的自定义组件，我有递归，我只想传递选定的子项或父项。

组件

import { Component, Input, EventEmitter, Output } from '@angular/core'; 

@Component ({ 
    selector: 'category-tree-view', 
    template: ` 
    <ul class="tree"> 
     <li *ngFor="let category of treeData"> 
      <label class="control control--checkbox" *ngIf="hasCheckbox"> 
       <input type="checkbox" [checked]="category.checked" (change)="selectedCategory(category, $event)" /> 
       <div class="control__indicator"></div> 
      </label> 
      <span *ngIf="category.subcategories?.length" (click)="toggleChildren(category)" class="toggle">+</span> 
      {{category.name}} 
      <div class="tree-actions" *ngIf="hasActions"> 
       <button class="btn btn-link edit" (click)="editCategory(category)"> 
        <i class="icon-admin-edit"></i> 
       </button> 
       <button class="btn btn-link delete" (click)="deleteCategory(category)"> 
        <i class="icon-admin-close"></i> 
       </button> 
      </div> 
      <category-tree-view [treeData]="category.subcategories" *ngIf="category.visible" (edit)="editCategory($event)" (delete)="deleteCategory($event)" [hasCheckbox]="hasCheckbox" (selected)="selectedCategory($event)" [hasActions]="hasActions"></category-tree-view> 
     </li> 
    </ul> 
    ` 
}) 
export class ProductCategoryTreeView { 
    @Input() treeData: any[]; 
    @Input() hasCheckbox: boolean = false; 
    @Input() hasActions: boolean = false; 
    @Output() edit = new EventEmitter(); 
    @Output() delete = new EventEmitter(); 
    @Output() selected = new EventEmitter(); 

    constructor() {} 

    toggleChildren(node: any) { 
     node.visible = !node.visible; 
    } 

    editCategory(category){ 
     this.edit.emit(category); 
    } 

    deleteCategory(category) { 
     this.delete.emit(category); 
    } 

    selectedCategory(category, event) { 
     this.selected.emit({category, event}); 
    } 
} 

这是我在其它的HTML页面，这是不同的组件，在这种情况下，产品form.component.html

<category-tree-view [treeData]="categories" (edit)="editCategory($event)" (delete)="deleteCategory($event)" (selected)="selectCategory($event)" [hasCheckbox]="true"></category-tree-view> 

而且我也只是在组件产品的方法form.component.ts

selectCategory(cat, event) { 
    console.log(cat, event); 
} 

以下是我在控制台登录该数据时获得的截图。

Answer 1

可以请你尝试下面的代码，并检查是否正常工作或没有？

selectedCategory(category, event) { 
    this.selected.emit(event); 
}