角材料表没有设计

Question

为什么我的Angular材质表没有设计？它与我在文档中看到的表不同。这是代码：

<mat-table>
  <ng-container matColumnDef="userId">
    <mat-header-cell *matHeaderCellDef mat-sort-header>User ID</mat-header-cell>
    <mat-cell *matCellDef="let row">{{row.userId}}</mat-cell>
  </ng-container>
  <ng-container matColumnDef="id">
    <mat-header-cell *matHeaderCellDef mat-sort-header>ID</mat-header-cell>
    <mat-cell *matCellDef="let row">{{row.id}}</mat-cell>
  </ng-container>
  <ng-container matColumnDef="title">
    <mat-header-cell *matHeaderCellDef mat-sort-header>Title</mat-header-cell>
    <mat-cell *matCellDef="let row">{{row.title}}</mat-cell>
  </ng-container>
  <ng-container matColumnDef="completed">
    <mat-header-cell *matHeaderCellDef mat-sort-header>Completed</mat-header-cell>
    <mat-cell *matCellDef="let row">{{row.completed}}</mat-cell>
  </ng-container>
  <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
  <mat-row *matRowDef="let row; columns: displayedColumns"></mat-row>
</mat-table>
<mat-paginator [pageSizeOptions]="[5, 10, 25, 100]"></mat-paginator>

这是输出表

我希望有人可以帮助我。谢谢

Answer 1

默认情况下，如果使用不同的角材料主题，则它是带有白色和黑色的纯色表。如果要样式化。您可以使用简单的CSS对其进行样式设置，方法是将CSS中的颜色添加为

tr{
  background-color:green;
}

Answer 2

您可以这样做。

app.component.html

<table mat-table [dataSource]="dataSource" class="mat-elevation-z8">

  <!--- Note that these columns can be defined in any order.
        The actual rendered columns are set as a property on the row definition" -->

  <!-- Position Column -->
  <ng-container matColumnDef="position">
    <th mat-header-cell *matHeaderCellDef> No. </th>
    <td mat-cell *matCellDef="let element"> {{element.position}} </td>
  </ng-container>

  <!-- Name Column -->
  <ng-container matColumnDef="name">
    <th mat-header-cell *matHeaderCellDef> Name </th>
    <td mat-cell *matCellDef="let element"> {{element.name}} </td>
  </ng-container>

  <!-- Weight Column -->
  <ng-container matColumnDef="weight">
    <th mat-header-cell *matHeaderCellDef> Weight </th>
    <td mat-cell *matCellDef="let element"> {{element.weight}} </td>
  </ng-container>

  <!-- Symbol Column -->
  <ng-container matColumnDef="symbol">
    <th mat-header-cell *matHeaderCellDef> Symbol </th>
    <td mat-cell *matCellDef="let element"> {{element.symbol}} </td>
  </ng-container>

  <tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
  <tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
</table>

app.component.ts 添加

export interface PeriodicElement {
    name: string;
    position: number;
    weight: number;
    symbol: string;
}

const ELEMENT_DATA: PeriodicElement[] = [
    {position: 1, name: 'Hydrogen', weight: 1.0079, symbol: 'H'},
    {position: 2, name: 'Helium', weight: 4.0026, symbol: 'He'},
    {position: 3, name: 'Lithium', weight: 6.941, symbol: 'Li'},
    {position: 4, name: 'Beryllium', weight: 9.0122, symbol: 'Be'},
    {position: 5, name: 'Boron', weight: 10.811, symbol: 'B'},
    {position: 6, name: 'Carbon', weight: 12.0107, symbol: 'C'},
    {position: 7, name: 'Nitrogen', weight: 14.0067, symbol: 'N'},
    {position: 8, name: 'Oxygen', weight: 15.9994, symbol: 'O'},
    {position: 9, name: 'Fluorine', weight: 18.9984, symbol: 'F'},
    {position: 10, name: 'Neon', weight: 20.1797, symbol: 'Ne'},
];

然后添加这两个变量

displayedColumns: string[] = ['position', 'name', 'weight', 'symbol'];
dataSource = ELEMENT_DATA;

然后在CSS中

table {
  width: 100%;
}

您可以检查working demo

如果您仍有疑问，请告诉我。