mdl-radio with ng为每个单击的单选按钮保持选中状态

Question

我有三个产品数组和一个变量来保持当前的一个作为选择：

product_types=['One', 'Two', 'Three']

product_type_one = [
{'description': 'Type one sample one', 'type': 'one'},
{'description': 'Type one sample two', 'type': 'one'},
{'description': 'Type one sample three', 'type': 'one'},
] 

product_type_two = [
{'description': 'Type two sample one', 'type': 'two'},
{'description': 'Type two sample two', 'type': 'two'},
{'description': 'Type two sample three', 'type': 'two'},
] 

product_type_three = [
{'description': 'Type three sample one', 'type': 'three'},
{'description': 'Type three sample two', 'type': 'three'},
{'description': 'Type three sample three', 'type': 'three'},
] 

selectedProduct=null;

在我的模板上，我填充单选按钮，以便用户可以选择以下产品组之一：

  <div class="my-filters" *ngFor="let product of product_types">
    <mdl-radio 
    name="productgroup" 
    value="product" 
    ngModel='selectedProduct'
    (change)="showProduct(product)"
    mdl-ripple>{{product}}</mdl-radio>
  </div><br>


 <mdl-card *ngFor="let product of selectedProduct" class="demo-card-event" mdl-shadow="2">
  <mdl-card-title mdl-card-expand>
   <h4>
     {{product.description}}
   </h4>
 </mdl-card-title>
 <mdl-card-actions mdl-card-border>
  <button mdl-button mdl-colored mdl-ripple (click)="openDialog()">
    view
  </button>
  <mdl-layout-spacer></mdl-layout-spacer>
  <mdl-icon>shopping_cart</mdl-icon>
</mdl-card-actions>
</mdl-card>

直到这里，无论用户点击什么单选按钮，都会在我的mdl卡中填充正确的数组，但用户点击的所有单选按钮仍会被点击，而不仅仅是当前的选择：

我做错了什么？

Answer 1

您应该使用import UIKit import Vision class ImageTranslation { func translateImages(for referenceImage: UIImage, floatingImage: UIImage, complete: @escaping (UIImage) -> Void) { let translationRequest = VNTranslationalImageRegistrationRequest(targetedCGImage: floatingImage.cgImage!, completionHandler: self.handleImageTranslationRequest) let vnImage = VNSequenceRequestHandler() try? vnImage.perform([translationRequest], on: referenceImage.ciImage!) } func handleImageTranslationRequest(request: VNRequest, error: Error?) { var alignmentTransform: CGAffineTransform! if let results = request.results as? [VNImageTranslationAlignmentObservation] { results.forEach { result in alignmentTransform = result.alignmentTransform print(alignmentTransform) } } } } 进行分组，如下所示

md-radio-group

Answer 2

我更新了我的for循环，如下所示：

 <div *ngFor="let product of product_types" class="my-filters">
    <mdl-radio name="productgroup" [value]='product' [(ngModel)]="selectedProduct" (change)="showProduct(product)"> {{product}} </mdl-radio> <br>
  </div>