依赖属性实验案例一

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目的：通过一个Student对象，实现前端两个TextBox输入值相同（此案例仅做实验，用于理解最简单的依赖属性用法，实际中不会这样用）

前端：

    <Grid>        <StackPanel>            <TextBox x:Name="tbx" Width="100" Height="30" Background="LightBlue"/>            <TextBox x:Name="tbx1" Width="100" Height="30" Background="LightBlue"/>        </StackPanel>    </Grid>

后台：

    public partial class MainWindow : Window    {        Student stu = new Student();        public MainWindow()        {            InitializeComponent();        }        private void Window_Loaded(object sender, RoutedEventArgs e)        {            stu.Name = tbx.Text;            Binding bd = new Binding();            bd.Path = new PropertyPath("Text");            //bd.ElementName = "tbx";//注意！！！Source和ElementName不能同时使用.            bd.Source = tbx;            bd.Mode = BindingMode.TwoWay;            BindingOperations.SetBinding(stu, Student.NameProperty, bd);            Binding bd2 = new Binding();            bd2.Path = new PropertyPath("Name");            bd2.Source = stu;            bd2.Mode = BindingMode.TwoWay;            BindingOperations.SetBinding(tbx1, TextBox.TextProperty, bd2);        }    }    public class Student : DependencyObject    {        public string Name        {            get            {                return (string)GetValue(NameProperty);            }            set            {                SetValue(NameProperty, value);            }        }        public static readonly DependencyProperty NameProperty = DependencyProperty.Register("Name", typeof(string), typeof(Student));    }

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