第二天4创建新button

using System.Windows;
using System.Windows.Controls;
using Microsoft.Phone.Controls;

namespace _3._1
{
    public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            Button mynewbutton = new Button();
            mynewbutton.Name = "button2";
            mynewbutton.Content = "Click Me";
            mynewbutton.Height = 100;
            mynewbutton.Width = 200;
            mynewbutton.Margin = new Thickness(100.0, 100.0, 100.0, 100.0);
            mynewbutton.HorizontalAlignment = HorizontalAlignment.Stretch;
            mynewbutton.VerticalAlignment = VerticalAlignment.Stretch;

            ContentGrid.Children.Add(mynewbutton); //ContentGrid是xaml页面里的Grid的名字name

        }
    }
}