ngFor中兩個增量，Angular5

Question

我在ngFor 5中使用ngFor編寫了一段代碼，如下所示

角度模型

 export class UserReviews {
  public PageName: string;
  public UserName: string;
  public Review: string;
  public Rating: number;
  public IsApproved: boolean;
}

Varibales

UserReviewModel: UserReviews = new UserReviews();
UserReviewList: UserReviews[] = [];
this.UserReviewList = [
      {
        PageName: "Page Name Here",UserName: "User1",Review:"Review Here",
        Rating: 3,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User2",Review:"Review Here",
        Rating: 4,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User3",Review:"Review Here",
        Rating: 3, IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User4",Review:"Review Here",
        Rating: 2,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User5",Review:"Review Here",
        Rating: 3,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User6",Review:"Review Here",
        Rating: 4,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User7",Review:"Review Here",
        Rating: 4,IsApproved: true
      },
      {
        PageName: "Page Name Here",UserName: "User8",Review:"Review Here",
        Rating: 5,IsApproved: true
      }
    ];

HTML模板

<div class="row" *ngFor="let item of UserReviewList;let i = index">
    <div class="col-md-6 border-right-0">
      <div class="mb-1 text-grey">{{UserReviewList[i].UserName}}</div>
      <div class="mb-1">
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star-half-alt text-warning"></i>
        <strong class="ml-1">{{UserReviewList[i].Rating}}</strong>
      </div>
      <div class="mb-1">
        {{UserReviewList[i].Review}}
      </div>
    </div>
    <div class="col-md-6">
      <div class="mb-1 text-grey">{{UserReviewList[i+1].UserName}}</div>
      <div class="mb-1">
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star text-warning"></i>
        <i class="fas fa-star-half-alt text-warning"></i>
        <strong class="ml-1">{{UserReviewList[i].Rating}}</strong>
      </div>
      <div class="mb-1">
          {{UserReviewList[i].Review}}
      </div>
    </div>
  </div>

我在這里想要實現的是在行中顯示評論，但在一行中應該有兩個評論示例：第1行應具有評論1和2，同一行2應具有評論3和4

但是問題在於它在第1行和第2行顯示了評論1和2，在3和4上卻顯示了評論2和3，所以2（甚至索引項）再次重復

您可以從下面的圖片中對此有所了解

如此處第二點所示，它應該以用戶3而不是用戶4開頭，以此類推，在第三行中是用戶5和用戶6

我的想法是在ngFor中將i加2

<div class="row" *ngFor="let item of UserReviewList;let i = index">

讓我=索引; 我++ = 2

但似乎不允許以尖角形式出現，

我怎樣才能做到有角度的並且也有角度重復 ？

Answer 1

實現解決方案的更好方法是編寫樣式，使內容可以動態地分配給所需的位置，而不要跳過ngFor中的索引。

Answer 2

您可以通過僅添加

<div class="row">
      <div class="col-md-6 border-right-0" *ngFor="let item of UserReviewList;let i = index">
            <div class="mb-1 text-grey">{{UserReviewList[i].UserName}}</div>
            <div class="mb-1">
                   <i class="fas fa-star text-warning"></i>
                   <i class="fas fa-star text-warning"></i>
                   <i class="fas fa-star text-warning"></i>
                   <i class="fas fa-star text-warning"></i>
                   <i class="fas fa-star-half-alt text-warning"></i>
                   <strong class="ml-1">{{UserReviewList[i].Rating}}</strong>
            </div>
            <div class="mb-1">
                  {{UserReviewList[i].Review}}
            </div>
       </div>

我認為無需添加第二個div