javascript - 如何在Angular中复制组件？

我在我的项目中使用Angular 5。我使用ngx-pagination进行了分页。我需要执行此分页顶部和底部表格。我需要在表格的顶部和底部进行分页。我是这样做的

<div class="admin-panel__nav-block navigation-block">
        <app-table-filter-size (valueChange)="valueChange($event)" [size]="size"></app-table-filter-size>
        <pagination-controls class="table-pagination pagination-block" previousLabel="Previous" nextLabel="Next" id="listing_pagination" (pageChange)="pageChange(p = $event)"></pagination-controls>
    </div>

<!--Table -->
...
<!--Table End -->
    <div class="admin-panel__nav-block navigation-block">
        <app-table-filter-size (valueChange)="valueChange($event)" [size]="size"></app-table-filter-size>
        <pagination-controls class="table-pagination pagination-block" previousLabel="Previous" nextLabel="Next" id="listing_pagination" (pageChange)="pageChange(p = $event)"></pagination-controls>
    </div>

这是可行的，但这可能不是一个好习惯，因为在不同的地方使用了相同的ID。如何摆脱重复的代码？在这种情况下我该怎么办？

最佳答案

您需要有一个id来唯一标识动态分配的地址，而不是硬编码的id="listing_pagination"

有一个paginationConfig数组并为每组数据推送配置


ts文件的实现

private paginationConfigs: Array; // define the variable
this.paginationConfigs = []; //initialize in the ngOnInit lifecycle function 

Have the below configuration for each dataset probably inside the loop

                const pagerConfig = {
                    id: `pager-${value}`, // value could be any unique identifer
                    itemsPerPage: 10,
                    currentPage: 1
                };
                this.paginationConfigs.push(pagerConfig);

html文件实现


<tr *ngFor="let item of mf.data| paginate: paginationConfigs[i]" >// data display </tr>

<pagination-controls previousLabel="Previous" nextLabel="Next [id]='paginationConfigs[i].id'(pageChange)="pageChange(paginationConfigs[i].currentPage= $event)"></pagination-controls>