Kendo Grid Selection Assistance

[Hanno]

Hi all.

I am currently trying to implement multi-selection within the grid.
When I check one of the checkboxes, it automatically selects all the items(checkboxes) in the grid (which it shouldn't).
I have closely followed the documentation but can't seem to figure it out.

Here is some of the code snippets:

<kendo-grid

  class="data-grid-kendo"

  [data]="gridData | async"

  kendoGridSelectBy="id"

  [(selectedKeys)]="mySelection"

  (selectedKeysChange)="keyChange($event)"

  [pageable]="true"

  [pageSize]="state.take"

  [skip]="state.skip"

  [sortable]="true"

  [selectable]="true"

  [groupable]="false"

  [reorderable]="true"

  [resizable]="false"

  (dataStateChange)="onStateChange($event)"

>

  <kendo-grid-checkbox-column

    class="grid-cell-style-select"

    [headerClass]="'grid-column-header'"

    [width]="45"

    [resizable]="false"

    [columnMenu]="false"

    [showSelectAll]="true"

  >

  </kendo-grid-checkbox-column>

 

 

Any help would be greatly appreciated .