WPF怎么实现ComboBox和Label之间的数据绑定
弄了个ComboBox下拉菜单{0,1,...,7}然后我想通过在下拉菜单中选择一项数值在Label控件显示出来，达到数据同步的效果。请问怎么实现啊？
还有怎么获取系统时间啊？我想一起在Label控件中显示出来。 combobox wpf label 控件 绑定
[解决办法]

<Window x:Class="WpfApplication3.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="3*" />
</Grid.RowDefinitions>
<Label Content="{Binding ElementName=comb, Path=SelectedValue.Content, Mode=OneWay}" />
<ComboBox Grid.Row="1" Height="23" HorizontalAlignment="Left" Width="120" Name="comb" >
<ComboBoxItem Content="1"  />
<ComboBoxItem Content="2" />
<ComboBoxItem Content="3" />
<ComboBoxItem Content="4" />
<ComboBoxItem Content="5" />
<ComboBoxItem Content="6" />
<ComboBoxItem Content="7" />
</ComboBox>
</Grid>
</Window>