XF 滑块和步进控件

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:App21"
             x:Class="App21.MainPage">

    <StackLayout VerticalOptions="Center">
        <Label x:Name="myLabel"></Label>
        <Slider x:Name="mySlider" Minimum="0" Maximum="100" Value="0"  ValueChanged="mySlider_ValueChanged"></Slider>
        <Stepper Minimum="0" Maximum="100" ValueChanged="Stepper_ValueChanged"></Stepper>
    </StackLayout>

</ContentPage>

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

namespace App21
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void mySlider_ValueChanged(object sender, ValueChangedEventArgs e)
        {
            myLabel.Text = mySlider.Value.ToString();
        }

        private void Stepper_ValueChanged(object sender, ValueChangedEventArgs e)
        {
            myLabel.Text =((Stepper)sender).Value.ToString();
        }
    }
}