using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;

namespace EnrtyDemo
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void Entry_TextChanged(object sender, TextChangedEventArgs e)
        {
            if ((sender as Entry).Text.Length == 1)
            {
                var entry = sender as Entry;
                var entrylist = (entry.Parent as StackLayout).Children;
                var entryindex = entrylist.IndexOf(entry);
                var nextentryIndex = (entryindex + 1) >= entrylist.Count ? 0 : entryindex + 1;
                var nextentry = entrylist.ElementAt(nextentryIndex);
                nextentry?.Focus();
            }
        }
    }
}