.net 将usercontrol上的绑定设置为mainwindow'；视图模型

我有以下用户控件

<UserControl x:Class="Station.Controls.FilterTraceDataControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d">
            <TextBox x:Name="PartNumbTextBox" Width="120" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="5,0,0,0" Height="25"/>
</UserControl>

如何将“PartNumberTextBox”从UserControl数据绑定到此属性

谢谢

"{Binding DataContext.SelectedRefDesFilter, 
                            RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}"

---

这应该可以工作，但我不知道UserControl中的属性将绑定到窗口中现有的属性。绑定语法应该有效。

在UserControl的代码隐藏（FilterTraceDataControl.xaml.cs）上，添加DependencyProperty，如下所示：

public string Text
{
    get { return (string)this.GetValue(TextProperty); }
    set { this.SetValue(TextProperty, value); } 
}

public static readonly DependencyProperty TextProperty = DependencyProperty.Register(
    "Text", typeof(string), typeof(FilterTraceDataControl),new PropertyMetadata(null));

然后通过RelativeSource或ElementName将UserControl的文本框绑定到它：

<TextBox x:Name="PartNumbTextBox" Width="120" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="5,0,0,0" Height="25"
         Text="{Binding Text, RelativeSource={RelativeSource AncestorType={x:Type controls:FilterTraceDataControl}}}" />

在您的视图中，只需将此新文本属性绑定到现有的SelectedRefDesFilter属性

<controls:FilterTraceDataControl Grid.Row="1" Visibility="{Binding FilterBarVisible ,Converter={StaticResource BooleanToVisibilityConverter}, Mode=TwoWay}"
                                 Text="{Binding SelectedRefDesFilter, Mode=TwoWay}" />

---

非常感谢您的帮助。

<TextBox x:Name="PartNumbTextBox" Width="120" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="5,0,0,0" Height="25"
         Text="{Binding Text, RelativeSource={RelativeSource AncestorType={x:Type controls:FilterTraceDataControl}}}" />

<controls:FilterTraceDataControl Grid.Row="1" Visibility="{Binding FilterBarVisible ,Converter={StaticResource BooleanToVisibilityConverter}, Mode=TwoWay}"
                                 Text="{Binding SelectedRefDesFilter, Mode=TwoWay}" />