Navigating to specific rows in a primeng virtualscroll table using the scrollToIndex

Question

Navigating to specific rows in a primeng virtualscroll table using the scrollToIndex

Utilizing Primeng virtual scroll table in Angular to manage large datasets in an array. I am interested in using the scrollToIndex. Is there an equivalent of cdk-virtual-scroll-viewport in Primeng table? I need the functionality where, upon a user clicking a button, the table will scroll to a specific index (e.g., 100).

<div class="log-console-parent" #logsParentDiv (wheel)="onUserScroll()">
  <p-table [columns]="cols" [value]="getFilteredLogs()" [scrollable]="true" [rows]="100" scrollHeight="flex"
    [virtualScroll]="true" [virtualRowHeight]="27">
    <ng-template pTemplate="body" let-rowData let-rowIndex="rowIndex" let-columns="columns">
      <tr>
        <td>
          <span [innerHTML]="rowData.message"></span>
        </td>
      </tr>
    </ng-template>
  </p-table>  
</div>

Versions: Angular: 12, Primeng: 12

angular typescript primeng primeng-table scrolltoindex

Answer 1

Answer №1

Absolutely, it can be done.

The p-table component provides the scrollToVirtualIndex method for this purpose. For more information, you can refer to: https://www.primefaces.org/primeng-v12-lts/#/table (specifically in the "Methods" section).

Here is an example of the code:

*.component..html

<p-table
  #table <- Insert this line to create a reference in the component
  [columns]="cols"
  [value]="getFilteredLogs()"
  [scrollable]="true"
  [rows]="100"
  scrollHeight="flex"
  [virtualScroll]="true"
  [virtualRowHeight]="27"
>
  <ng-template
    pTemplate="body"
    let-rowData
    let-rowIndex="rowIndex"
    let-columns="columns"
  >
    <tr>
      <td>
        <span [innerHTML]="rowData.message"></span>
      </td>
    </tr>
  </ng-template>
</p-table>

*.component.ts

class xyz {
  @ViewChild('pTable') pTable: Table;

   /**
   * @param i starts from 0
   */
  scrollToRow(i: number): void {
    this.table.scrollToVirtualIndex(i);
  }
}

Answer 2

Absolutely, it can be done.

The p-table component provides the scrollToVirtualIndex method for this purpose. For more information, you can refer to: https://www.primefaces.org/primeng-v12-lts/#/table (specifically in the "Methods" section).

Here is an example of the code:

*.component..html

<p-table
  #table <- Insert this line to create a reference in the component
  [columns]="cols"
  [value]="getFilteredLogs()"
  [scrollable]="true"
  [rows]="100"
  scrollHeight="flex"
  [virtualScroll]="true"
  [virtualRowHeight]="27"
>
  <ng-template
    pTemplate="body"
    let-rowData
    let-rowIndex="rowIndex"
    let-columns="columns"
  >
    <tr>
      <td>
        <span [innerHTML]="rowData.message"></span>
      </td>
    </tr>
  </ng-template>
</p-table>

*.component.ts

class xyz {
  @ViewChild('pTable') pTable: Table;

   /**
   * @param i starts from 0
   */
  scrollToRow(i: number): void {
    this.table.scrollToVirtualIndex(i);
  }
}

Navigating to specific rows in a primeng virtualscroll table using the scrollToIndex

Answer №1

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