我正在基于 PrimeNG 的 DataTable 为我的应用程序制作一个可重用的表格组件。
我的组件具有以下 html 代码:
<p-dataTable [value]="cars" [rows]="5" [paginator]="true" [globalFilter]="gb" [(selection)]="selectedValue" (onRowSelect)="onRowSelect($event)" #dt>
<p-column *ngIf="hasSelectCheckbox" [style]="{'width':'38px'}" selectionMode="single"></p-column>
<p-column *ngIf="hasExpander" expander="true" styleClass="col-icon"></p-column>
<p-column *ngFor="let col of cols" [field]="col.field" [header]="col.header" [sortable]="col.sortable" [filter]="col.hasFilter" filterPlaceholder="{{col.filterPlaceholder||'Search'}}" filterMatchMode="{{col.filterMatchMode}}">
<ng-template *ngIf="col.hasDropdownFilter" pTemplate="header" let-col>
<p-dropdown [options]="brands" appendTo="body" [style]="{'width':'100%'}" (onChange)="myfilter($event.value,col.field,col.filterMatchMode); dt.filter($event.value,col.field,col.filterMatchMode); " styleClass="ui-column-filter"></p-dropdown>
</ng-template>
</p-column>
</p-dataTable>
在 .ts 我有
cars: Car[] = [];
selectedValue: Car;
hasSelectCheckbox = true;
hasExpander = false;
brands: SelectItem[] = [];
cols: any[] = [];
ngOnInit() {
this.brands = [
{label: 'Select a Brand', value: null},
{label: 'VW1', value: 'VW1'},
{label: 'VW2', value: 'VW2'},
{label: 'VW3', value: 'VW3'},
{label: 'VW4', value: 'VW4'}
]
this.cols = [
// tslint:disable-next-line:max-line-length
{field: 'vin', header: 'Vin', sortable: true, hasFilter: true, filterPlaceholder: null, filterMatchMode: 'contains' , hasDropdownFilter: null, hasMultiSelectFilter: null, dropdownItems: null},
{field: 'year', header: 'Year', sortable: true, hasFilter: false, filterPlaceholder: null, filterMatchMode: 'contains' , hasDropdownFilter: null, hasMultiSelectFilter: null, dropdownItems: null},
// tslint:disable-next-line:max-line-length
{field: 'brand', header: 'Brand', sortable: false, hasFilter: false, filterPlaceholder: null, filterMatchMode: 'equals' , hasMultiSelectFilter: null, hasDropdownFilter: true, dropdownItems: this.brands },
{field: 'color', header: 'Color', sortable: true, hasFilter: false, filterPlaceholder: null, filterMatchMode: 'contains' , hasDropdownFilter: null, hasMultiSelectFilter: null, dropdownItems: null}
];
/* this.carService.getCarsSmall().then(cars => this.cars = cars); */
this.cars.push(
{vin: 'Somet0', year: 1998, brand: 'VW1', color: 'White1'},
/* fill some data*/
);
}
一切正常。
因为我想要一个可重用的组件,所以我想让下拉项依赖于列项。但是,如果我使用col.dropdownItems
而不是brands
,下拉列表不会收到这些项目。
有解决方案吗?