我尝试使用管道过滤产品(如果没有从列表中选择的过滤器,我将显示所有产品) 但是我遇到了错误。为什么?
<h2>store</h2>
<select [(ngModel)]="selectedOption" name=Gender>
<option *ngFor="let g of GenderFilter">{{g.DisplayText}}</option>
</select>
<select>
<select [(ngModel)]="selectedOptionPrice" name=Price>
<option *ngFor="let p of PriceFilter">{{p.DisplayText}}</option>
</select>
<tr *ngFor="let P of products | filer : Gender | orderBy: 'GenderFilter'">
<td>{{p.DisplayText}}</td>
</tr>
<tr *ngFor="let P of products | filer : Price | orderBy: 'PriceFilter'">
<td>{{p.DisplayText}}</td>
</tr>
<ul>
<li *ngFor="let store of stores">
<ul>
<li *ngFor="let product of store.Products">
<img src={{product.ProductImage}}>
<p>store: {{ store.StoreName }}</p>
<p>Product Price: {{ product.Price | currency}}</p>
<p>Product Title: {{ product.ProductTitle }}</p>
</li>
</ul>
</li>
</ul>
答案 0 :(得分:1)
可能的原因可能是 缺少FormsModule,因此将其添加到您的模块中,
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
@NgModule({
imports: [
FormsModule
]
或
在选择中检查[(ngModel)]
的语法/拼写