Uncheck my checkbox based on other column value

Question

I want to uncheck my checkbox automatically whenever a specific value (suppose 'x') is selected on my select box. Please help me. Thanks in advance.

The code for my selectbox is given below:

 <div *dxTemplate="let data of 'namesTemplate'">
            <dx-select-box  [searchEnabled]="true" [showClearButton]="true" [value]="data.value"
                            [dataSource]="names"
                            (onValueChanged)="setNames($event, data)">
            </dx-select-box>
</div>

Code for checkbox:

<dxi-column dataField="isChannel" editCellTemplate="cellTemplate"  cellTemplate="multiCellTemplate">
        <div *dxTemplate="let data of 'cellTemplate'">
            <dx-check-box [(value)]="data.value" (onValueChanged)="getValue($event, data)" [disabled]="isDisabled"></dx-check-box>
        </div>
        <div *dxTemplate="let data of 'multiCellTemplate'">
            <dx-check-box
                [(value)]="data.value" readOnly="true">
            </dx-check-box>
        </div>
 </dxi-column>

whenever selectbox value changes onValueChanged gets called, so I tried to change the value in that function but it didn't work.

 public setNames(obj: any, rowData: any): void {

        if (obj.value === 'x') {
            rowData.data.isChannel = false;
        }

  }