ObjectUnsubscribedError: object unsubscribed

Question

ObjectUnsubscribedError: object unsubscribed , when sometime(not every time) entering any value in text box

---

HTML

<input #gb type="text" pInputText class="ui-widget ui-text"
[(ngModel)]="gb.value" (ngModelChange)="clearFilter(gb.value)" placeholder="Find" />

component.ts

clearFilter(newValue) {
        this.infomessage = [];
        this.errormessage = [];
        this.isDelete = false;
        this.isDefaultLoad = false;
        if (this.oldFilterText === '' && newValue === '') {
            return false;
        }
        this.oldFilterText = newValue;
        if (this._configuration.isNullOrEmptyOrUndefined(newValue)) {
            this.sortField = '';
            if (!this._configuration.isNullOrEmptyOrUndefined(this.dataTable.sortField)) {
                this.sortField = this.dataTable.sortField;
            }
            this.dataTable.reset();
            this.tempFilteredRecords = [];
            this.getApprovalTypelist();
            this.dataTable.sortField = this.sortField;
            this.dataTable.sortMode = 'single';
            this.dataTable.sortOrder = this.sortOrder;
        }
    }

My code working good! but Sometime am getting a error when type in the text box. Also clearFilter does not fire after getting this error.

error : ObjectUnsubscribedError: object unsubscribed

I have tried this(But I don't know these below links related with my defects or not) below discussions

Angular 2 object unsubscribed error

ObjectUnsubscribedError when trying to prevent subscribing twice

Exception: ObjectUnsubscribedError when working with Observables with RxJS and Angular2

ObjectUnsubscribedError when trying to prevent subscribing twice

But everything does not helps to me. Kindly take me out of this unpredictable defect :(

Answer 1

Finally I got the answer, I have just unsubscribe the onFilter() event by using this below code

this.dataTable.onFilter.unsubscribe();

Thanks for the views!