我有以下表格：

<StackPanel x:Name="LayoutRoot" Margin="10" DataContext="{Binding ElementName=Window,Mode=OneWay}">
    <DockPanel>
        <TextBlock Text="Proxy address:" VerticalAlignment="Center"/>
        <TextBox Text="{Binding User.PageAddress,Mode=TwoWay,UpdateSourceTrigger=Explicit}" Margin="28,0"/>
    </DockPanel>
    <DockPanel Margin="0,5,0">
        <TextBlock Text="User name:" VerticalAlignment="Center"/>
        <TextBox Text="{Binding User.UserName,UpdateSourceTrigger=Explicit}" Margin="46,0">
        <TextBlock Text="User password:" VerticalAlignment="Center"/>
        <TextBox Text="{Binding  User.Password,UpdateSourceTrigger=Explicit}" Margin="26,0"/>
    </DockPanel>
    <StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Right" Margin="0,0">
        <Button Content="Ok" IsDefault="True" Width="70" Margin="0,15,0" Click="Ok_Click"/>
        <Button Content="Cancel" IsCancel="True" Width="70"/>
    </StackPanel>
</StackPanel>

我应该调用什么方法来更新User属性？

我不想通过x：Name调用元素来调用绑定.如果我必须通过x：Name来解决这些元素,那么就我而言,我也可以完全没有约束力.