同一组件中带有MatSort的多个mat-table [英] Multiple mat-table with MatSort within the same component

问题描述

我在同一组件中有2个物料2个表，并进行了排序.我找不到将MatSort指令分配给它自己的表的方法.我只能在第一个表上使用MatSort，而第二个表则无法识别出有MatSort.有谁知道如何在同一组件中对两个表进行排序?

I have 2 material 2 tables in the same component with sorting. I cannot find a way to assign the MatSort directive to its own table. I'm only able to use MatSort on the first table and the second table doesn't recognize there is a MatSort on it. Does anyone know how to configure two tables with sorting in the same component?

我尝试用不同的名称定义ViewChild，但这没有用.

I've tried defining the ViewChild with different names, but it didn't work.

@ViewChild('hBSort') hBSort: MatSort;
@ViewChild('sBSort') sBSort: MatSort;


this.hBSource = new HBDataSource(this.hBDatabase, this.hBPaginator, 
this.hBSort);
this.sBSource = new SBDataSource(this.sBDatabase, this.sBPaginator, 
this.sBSort);

Table 1
const displayDataChanges = [
   this.hBPaginator.page,
   this.hBSort.sortChange,
   this._filterChange
];

Table 2
const displayDataChanges = [
   this.sBPaginator.page,
   this.sBSort.sortChange,
   this._filterChange
];

Table 1
<mat-table #hBtable [dataSource]="hBSource" matSort style="min-width: 
740px;">
    <ng-container matColumnDef="domain">
        <mat-header-cell *matHeaderCellDef mat-sort-header> {{'list.domain' | translate}} </mat-header-cell>
        <mat-cell *matCellDef="let row"> {{row.domain}} </mat-cell>
    </ng-container>
    <ng-container matColumnDef="general">
        <mat-header-cell *matHeaderCellDef mat-sort-header> {{'list.general' | translate}} </mat-header-cell>
        <mat-cell *matCellDef="let row"> {{row.general.gNum}} ({{row.general.gPct | number: '1.1-2'}}%) </mat-cell>
    </ng-container>
    <mat-header-row *matHeaderRowDef="hBColumns"></mat-header-row>
    <mat-row *matRowDef="let row; columns: hBColumns;"></mat-row>
 </mat-table>


Table 2
<mat-table #sBSort [dataSource]="sBSource" matSort style="min-width: 1200px;">
      <ng-container matColumnDef="domain">
        <mat-header-cell *matHeaderCellDef mat-sort-header> {{'list.domain' | translate}} </mat-header-cell>
        <mat-cell *matCellDef="let row"> {{row.domain}} </mat-cell>
      </ng-container>
      <ng-container matColumnDef="general">
        <mat-header-cell *matHeaderCellDef mat-sort-header> {{'list.general' | translate}} </mat-header-cell>
        <mat-cell *matCellDef="let row"> {{row.general.gNum}} ({{row.general.gPct | number: '1.1-2'}}%) </mat-cell>
      </ng-container>
      <mat-header-row *matHeaderRowDef="sBColumns"></mat-header-row>
      <mat-row *matRowDef="let row; columns: sBColumns;"></mat-row>
</mat-table>

推荐答案

此问题的解决方法是，在DOM中定义ViewChild引用后，需要确保在其后添加="matSort".

The fix to this is that after you define your ViewChild reference in the DOM your need to make sure to add the ="matSort" after it.

步骤:

1. 在您的组件中设置MatSort实例，并在DataSource依赖项中对其进行定义，如下所示:

1. Set up MatSort instances in your component and define them in your DataSource dependencies like so:

@ViewChild('hBSort') hBSort: MatSort;
@ViewChild('sBSort') sBSort: MatSort;

this.hBSource = new HBDataSource(this.hBDatabase, this.hBPaginator, 
this.hBSort);
this.sBSource = new SBDataSource(this.sBDatabase, this.sBPaginator, 
this.sBSort);

在DOM中定义ViewChild引用，并将其设置为等于matSort(注意:matSort属性在mat-table标记上):

Define ViewChild References in the DOM and set them equal to matSort (Note: matSort attribute is on the mat-table tag):

Table 1
<mat-table #hBSort="matSort" [dataSource]="hBSource" matSort 
  style="min-width: 740px;">
            ***Table Rows and pagination***
</mat-table>

Table 2
<mat-table #sBSort="matSort" [dataSource]="sBSource" matSort 
  style="min-width: 1200px;">
            ***Table Rows and pagination***
</mat-table>   

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