元素的数据文本需要设置。
XAML：
<Window x:Class="WpfDependencyPropertyTest.Window1" x:Name="mywindow">
<StackPanel>
<Label Content="{Binding Path=Test,ElementName=mywindow}" />
</StackPanel>
</Window>
C#：
public static readonly DependencyProperty TestProperty =
DependencyProperty.Register("Test",typeof(string),typeof(Window1),new FrameworkPropertyMetadata("Test"));
public string Test
{
get { return (string)this.GetValue(Window1.TestProperty); }
set { this.SetValue(Window1.TestProperty,value); }
}
还看到这个相关的问题：
