In my angular app I have a scenario where I have list of countries and if I select a country it will make an API call and fetched the respective states list. Then if I select state it should display in mat-select. I have implemented the functionality but state selection is not happening.
here is the example – https://stackblitz.com/edit/dynamic-nested-menus-zwl5y3?file=app%2Fapp.component.ts,app%2Fapp.component.html,app%2Fapp.component.scss
Can someone help me.