C#windows编程：数据绑定

DataContext控件：用于定义一个数据源，数据源可以绑定到某个元素上

绑定本地对象：

1. <ComboBox  HorizontalAlignment="Left" Margin="11,33,0,0" VerticalAlignment="Top" Width="90"
2.                                                                                  ComboBox 的IsEnabled属性  绑定Check的 IsChecked属性  
3. Name="playersComboBox" SelectedIndex="0"  IsEnabled="{Binding ElementName=playChecked Path=IsChecked}"/>

静态绑定到外部对象：

1. <Canvas.Resources>
2.         <local:NumberOfPlayers x:Key="numberOfPlayersData" />
3. </Canvas.Resources>
4.  
5.  <ComboBox HorizontalAlignment="Left" Margin="196,58,0,0" VerticalAlignment="Top" Width="86" Name="numberOfPlayersComboBox" ItemsSource="{Binding Source={StaticResource numberOfPlayersData}}" SelectedValue="{Binding Path=NumberOfPlayers}" />

窗口命令绑定：

      绑定数据源

1. <Window.DataContext >
2.     <local:GameViewModel />
3.   </Window.DataContext>

      绑定命令

1.   <Window.CommandBindings>
2.     //关闭命令
3.     <CommandBinding Command="ApplicationCommands.Close"
4.         CanExecute="CommandCanExecute" Executed="CommandExecuted" />
5.     //保存命令
6.     <CommandBinding Command="ApplicationCommands.Save" 
7.         CanExecute="CommandCanExecute" Executed="CommandExecuted" />
8.     </Window.CommandBindings>

代码隐藏文件：

1.  private void CommandCanExecute(object sender, CanExecuteRoutedEventArgs e)
2.     {
3.       if (e.Command == ApplicationCommands.Close)
4.         e.CanExecute = true;
5.       if (e.Command == ApplicationCommands.Save)
6.         e.CanExecute = true;
7.      e.Handled=true;
8.     }
9.     private void CommandExecuted(object sender, ExecutedRoutedEventArgs e)
10.     {
11.       if (e.Command == ApplicationCommands.Close)
12.         this.Close();
13.       e.Handled = true;
14.     }