Create Custom Checkbox tree view component Angular

I want to create Tree View component in Angular with checkbox. Please find my code at -

https://stackblitz.com/edit/angular-qvzr8c

Here I am able to render tree View on UI. But want to implement functionality -

1. When Parent checkbox is checked then all its child check box should be checked automatically.
2. When all child checkboxes checked then parent node chekbox should automatically selected.
3. At the end want list of all selected checkboxes.

Here how can I set model to checkboxes and achieve above functionality.

Continue reading...