====== 012 チェックボックス ======

{{:wiki:windowsphone:7.1:tips:w_phone_012_001.png?200|}}

====== 概要 ======
チェックボックスの制御を行います。ラジオボタンとの違いはチェックボックス単体で有効、無効の切り替えができる点です。

==== MainPage.xaml ====
<code xml>
<phone:PhoneApplicationPage 
	x:Class="BaseApp.MainPage"
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
	xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
	xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
	xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
	mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
	FontFamily="{StaticResource PhoneFontFamilyNormal}"
	FontSize="{StaticResource PhoneFontSizeNormal}"
	Foreground="{StaticResource PhoneForegroundBrush}"
	SupportedOrientations="Portrait" Orientation="Portrait"
	shell:SystemTray.IsVisible="True">
	
	<!--LayoutRoot is the root grid where all page content is placed-->
	<Canvas x:Name="LayoutRoot" Background="Black"></Canvas>
</phone:PhoneApplicationPage>
</code>

==== MainPage.xaml.cs ====
<code csharp>
MainPage.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;

namespace BaseApp
{
	// エントリーポイント
	public partial class MainPage : PhoneApplicationPage
	{
		private TextBlock textBlock0 = null;
		private TextBlock textBlock1 = null;
		private TextBlock textBlock2 = null;
		
		// コンストラクタ
		public MainPage()
		{
			// コンポーネントの初期化。
			InitializeComponent();
			
			// 初期化完了後に呼ばれるメソッドの登録。
			Loaded += OnLoaded;
		}
		
		// 初期化完了後に呼ばれるメソッド。
		void OnLoaded(object sender, RoutedEventArgs args)
		{
			// 文字列の表示。
			{
				textBlock0 = new TextBlock();
				textBlock0.FontFamily = new FontFamily("ＭＳ ゴシック");
				textBlock0.FontSize = 32;
				textBlock0.Foreground = new SolidColorBrush(Color.FromArgb(255, 255, 255, 255));
				textBlock0.Text = "check0:OFF";
				Canvas.SetLeft(textBlock0, 10);
				Canvas.SetTop(textBlock0, 10);
				LayoutRoot.Children.Add(textBlock0);
				
				textBlock1 = new TextBlock();
				textBlock1.FontFamily = new FontFamily("ＭＳ ゴシック");
				textBlock1.FontSize = 32;
				textBlock1.Foreground = new SolidColorBrush(Color.FromArgb(255, 255, 255, 255));
				textBlock1.Text = "check1:OFF";
				Canvas.SetLeft(textBlock1, 10);
				Canvas.SetTop(textBlock1, 50);
				LayoutRoot.Children.Add(textBlock1);
				
				textBlock2 = new TextBlock();
				textBlock2.FontFamily = new FontFamily("ＭＳ ゴシック");
				textBlock2.FontSize = 32;
				textBlock2.Foreground = new SolidColorBrush(Color.FromArgb(255, 255, 255, 255));
				textBlock2.Text = "check2:OFF";
				Canvas.SetLeft(textBlock2, 10);
				Canvas.SetTop(textBlock2, 90);
				LayoutRoot.Children.Add(textBlock2);
				
			}
			
			// チェックボックスを表示する。
			{
				CheckBox checkbox0 = new CheckBox();
				checkbox0.Checked += new RoutedEventHandler(OnButtonChecked);
				checkbox0.Unchecked += new RoutedEventHandler(OnButtonUnchecked);
				checkbox0.Name = "check0";
				checkbox0.Content = "CheckBox0";
				checkbox0.IsChecked = false;
				Canvas.SetLeft(checkbox0, 100);
				Canvas.SetTop(checkbox0, 150);
				LayoutRoot.Children.Add(checkbox0);
				
				CheckBox checkbox1 = new CheckBox();
				checkbox1.Checked += new RoutedEventHandler(OnButtonChecked);
				checkbox1.Unchecked += new RoutedEventHandler(OnButtonUnchecked);
				checkbox1.Name = "check1";
				checkbox1.Content = "CheckBox1";
				checkbox1.IsChecked = false;
				Canvas.SetLeft(checkbox1, 100);
				Canvas.SetTop(checkbox1, 200);
				LayoutRoot.Children.Add(checkbox1);
				
				CheckBox checkbox2 = new CheckBox();
				checkbox2.Checked += new RoutedEventHandler(OnButtonChecked);
				checkbox2.Unchecked += new RoutedEventHandler(OnButtonUnchecked);
				checkbox2.Name = "check2";
				checkbox2.Content = "CheckBox2";
				checkbox2.IsChecked = false;
				Canvas.SetLeft(checkbox2, 100);
				Canvas.SetTop(checkbox2, 250);
				LayoutRoot.Children.Add(checkbox2);
			}
		}
		
		// チェックが付いた時に呼ばれるメソッド。
		private void OnButtonChecked(object sender, RoutedEventArgs e)
		{
			CheckBox cb = sender as CheckBox;
			switch (cb.Name)
			{
				case "check0":
					textBlock0.Text = rb.Name + ":ON";
					break;
				case "check1":
					textBlock1.Text = rb.Name + ":ON";
					break;
				case "check2":
					textBlock2.Text = rb.Name + ":ON";
					break;
			}
		}
		
		// チェックが外れた時に呼ばれるメソッド。
		private void OnButtonUnchecked(object sender, RoutedEventArgs e)
		{
			CheckBox cb = sender as CheckBox;
			switch (cb.Name)
			{
				case "check0":
					textBlock0.Text = rb.Name + ":OFF";
					break;
				case "check1":
					textBlock1.Text = rb.Name + ":OFF";
					break;
				case "check2":
					textBlock2.Text = rb.Name + ":OFF";
					break;
			}
		}
	}
}

</code>