Expand row in grid

I have a ejs grid, where one of the column is a button,  and on click of a button in a particular row that row should expand and show other details, and on click of the button again the details should collapse, and the actual row should be displayed again, keeping the other rows as it is. Kindly help to acheive this. 

<div class="control-section">      <ejs-grid #grid [dataSource]='data' id='Grid'>          <ng-template #detailTemplate let-data>              <table class="detailtable" width="100%">                  ...                  <tbody>                      <tr>                          <td rowspan="4" style="text-align: center;">                              <img class='photo' src="./assets/grid/images/{{data.EmployeeID}}.png" alt="{{data.EmployeeID}}" />                          </td>                          <td>                              <span style="font-weight: 500;">First Name: </span> {{data.FirstName}}                          </td>                          <td>                              <span style="font-weight: 500;">Postal Code: </span> {{data.PostalCode}}                          </td>                      </tr>                      ...                  </tbody>              </table>          </ng-template>          <e-columns>              <e-column headerText='Expand/collapse' width='150' textAlign='Center'>                  <ng-template #template let-data>                      <button (click)="clicked($event)">Click</button>                  </ng-template>              </e-column>              ...          </e-columns>        </ejs-grid>      </div>

...  export class AppComponent {    ...      ngOnInit(): void {      ...    }    clicked(e) {      let tr = parentsUntil(e.target, 'e-row');      let trIdx = parseInt(tr.getAttribute('aria-rowindex'));      if (parentsUntil(e.target, 'e-row').children[0].classList.contains('e-detailrowexpand')) {        this.grid.detailRowModule.collapse(trIdx)      } else {        this.grid.detailRowModule.expand(trIdx)      }    }  }