Filter PrimeNG Table on Init using .ts code

I need to filter the table on view load.

For example, I have a table with 5 columns (Woid, Customer, AdapterID, Assignee, Status). On load, I want to filter woid column using 'contains'. I accomplished filtering onLoad but when I want to filter again that column later I got an error:

'Cannot find a differ supporting object '[object Object]' of type 'object'. NgFor only supports binding to Iterables such as Arrays.'
​

Program code below...

@ViewChild('dt', { static: true }) dt: any;
ngOnInit() {
this.dt.filter('22', 'woid', 'contains');
}




Also, after filtering via .ts code (woid filter) and directly in view with <p-columnFilter> (customer filter) from PrimeNG Angular collection, I get this JSON. woid property is not an array, unlike custom which is. onFiltering method and JSON below.

onFiltering(event: any) {
console.log('Filtered value: '+ JSON.stringify(event.filters));
}


{
"woid": {
"value": "22",
"matchMode": "contains"
},
"customer": [{
"value": "2",
"matchMode": "contains",
"operator": "and"
}]
}

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