<Grid Margin="60">    <Grid.RowDefinitions>        <RowDefinition Height="*">RowDefinition>        <RowDefinition Height="*">RowDefinition>        <RowDefinition Height="*">RowDefinition>    Grid.RowDefinitions>    <Label Content="修改上方文本框内容,下方文本框内容会跟着改变...">Label>    <TextBox Grid.Row="1" Name="textBox1" Margin="0,0,0,20">TextBox>    <TextBox Grid.Row="2" Name="textBox2" Margin="0,20,0,0" Text="{Binding ElementName=textBox1,Path=Text}">TextBox>Grid>

示例代码

https://github.com/zLulus/NotePractice/tree/dev3/WPF/WpfDemo/Bind 下的BindDemoForView