Blazor component : refresh parent when model is updated from child component

Create a shared service. Subscribe to the service’s RefreshRequested event in the parent and Invoke() from the child. In the parent method call StateHasChanged();

public interface IMyService
{
    event Action RefreshRequested;
    void CallRequestRefresh();
 }

public class MyService: IMyService
{
    public event Action RefreshRequested;
    public void CallRequestRefresh()
    {
         RefreshRequested?.Invoke();
    }
}


//child component
MyService.CallRequestRefresh();


//parent component
MyService.RefreshRequested += RefreshMe;

private void RefreshMe()
{
    StateHasChanged();
}