Angular2 Update ng2-charts with labels

Question

I am starting to work these days with Angular2, and have a question with the framework ng2-charts.

Here is my component.ts

Answer 1

I can get the values when i print to console but does not display on the chart.

this.pieChartLabels :: ['PayDirect agent deposit','GtCollections agent deposit','Quickteller agent deposit']
this.pieChartData :: [1990,1202,2476]

Is there a way to update the chart. It seems the chart was loaded before the data was received from the web service.

isDataAvailable2 = true

but the chart never loaded.