是否有一種方法可以根據這些選項卡的內容基於表單提交在角度材料選項卡之間進行切換？

Question

我正在開發一個有角度的Web應用程序。 我需要根據在這些標簽的內容中執行的操作來控制我的角度標簽。 例如，我有以下選項卡：項目信息，變化，定價，庫存等，這些選項卡包含由角度組件加載的表格。 當項目信息表單成功提交后，我想自動切換到“變體”選項卡。 另外，用戶在保存項目信息之前應該不能切換到版本選項卡。

<mat-tab-group class=" navbar-default panel-piluku  nav nav-justified nav-wizard nav-progression" > 
  <mat-tab class="outbound_link" role="button" title="Item Info" label="Item Info">
    <add-product-information></add-product-information>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Variations" label="Variations">
    <add-product-variation></add-product-variation>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Pricing" label="Pricing">
      <add-product-pricing></add-product-pricing>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Inventory" label="Inventory">
      <add-product-stock></add-product-stock>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Images" label="Images">
    <add-product-images></add-product-images>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Locations" label="Locations">
    <add-product-locations></add-product-locations>
  </mat-tab>
</mat-tab-group>

constructor(private route: ActivatedRoute, private productsService: ProductsService, private router: Router, public dialog: MatDialog, private suppliersService: SuppliersService) { }
  submitProduct = function(){
    this.product["sku"] = this.sku;
    this.product["alternate_sku"] = this.alternate_sku;
    this.product["product_name"] = this.product_name;
    this.product["product_description"] = this.product_description;
    this.product["category"] = this.category_id;
    this.product["price_per_unit"] = this.price_per_unit;
    this.product["reorder_level"] = this.reorder_level;
    this.product["discontinued"] = this.discontinued;
    this.product["cost"] = this.cost;
    this.product["default_price"] = this.default_price;
    this.product["best_price"] = this.best_price;
    this.product["medium_price"] = this.medium_price;
    this.product["brand"] = this.brand;
    this.product["upc"] = this.upc;
    this.productsService.addProduct(this.product).subscribe((data)=>{
      ````Here the tab should switch```````
    });

<form action="submitProduct()" id="item_form" class="form-horizontal" method="post" accept-charset="utf-8">

  <input type="hidden" name="ecommerce_product_id" value="" />
...
...
...

      <div class="form-actions">
        <input type="submit" name="submitf" value="Save" id="submitf"
          (click)="submitProduct()" class="submit_button floating-button btn btn-lg btn-primary" />
      </div>
    </div>
  </div>
</form>

Answer 1

可以使用輸入到mat-tab-group的selectIndex來控制選擇mat-tab-group 。 要更改tabSelected，將其設置為所需的標簽索引，然后將標簽更改為設置的索引。

為此，我只需定義一個服務並使用行為主體即可。 我的服務定義：

my-tab.service.ts ：

@Injectable()

export class MyTabService{
 tabSubject : BehaviorSubject<number> = new BehaviorSubject<number>(0);

 constructor(){}

 setTabSelected(tabIndex : number){
  this.tabSubject.next(tabIndex);
 } 

 getTabSelected() {
  this.tabSubject.asObservable();
 }
}

現在，在tabs組件中訂閱getTabSelected() ，然后在訂閱響應中獲得tabIndex 。

考慮您的標簽組件是my-tab.component.ts ，

@Component({...})
export class MyTabComponent {
 selectdIndex : number = 0;
 constructor(private _myTabService : MyTabService){}

 ngOnInit(){

 this.-myTabService.getTabSelected().subscribe((tabIndex : number) =>{
  this.selectedIndex = tabIndex;
 })

...
 }
...
}

在模板中使用selectedIndex：

<mat-tab-group class=" navbar-default panel-piluku  nav nav-justified nav-wizard nav-progression" [selectedIndex]='selectedIndex'> 
  <mat-tab class="outbound_link" role="button" title="Item Info" label="Item Info">
    <add-product-information></add-product-information>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Variations" label="Variations">
    <add-product-variation></add-product-variation>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Pricing" label="Pricing">
      <add-product-pricing></add-product-pricing>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Inventory" label="Inventory">
      <add-product-stock></add-product-stock>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Images" label="Images">
    <add-product-images></add-product-images>
  </mat-tab>
  <mat-tab class="outbound_link" role="button" title="Locations" label="Locations">
    <add-product-locations></add-product-locations>
  </mat-tab>
</mat-tab-group>

有關Mat選項卡組中的輸入和事件的更多信息，請參考： Mat選項卡