C# WPF绑定成孙子_C#_Wpf_Binding

C# WPF绑定成孙子

c# wpf binding

C# WPF绑定成孙子,c#,wpf,binding,C#,Wpf,Binding,MainWindow.xaml <Window x:Class="grandson.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression

MainWindow.xaml

<Window x:Class="grandson.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:grandson"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <local:Root x:Key="RootControl"/>
    </Window.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <TextBlock Text="{Binding ContentControl.Content.ContentControl.DataContext.Text}"/>

        <ContentControl Name="ContentControl" Grid.Column="1" Content="{StaticResource RootControl}" />
    </Grid>
</Window>

问题是如何从主窗口绑定到Children.DataContext.Text

**Text="{Binding ContentControl.Content.ContentControl.DataContext.Text}"**

它正在为根控件DataContext工作

<TextBlock Text="{Binding ElementName=ContentControl,Path=Content.DataContext.Property}"/>

如何从MainWindow.ContentControl以Root用户控件的身份访问ContentControl.Content？

Resolved by added property Children

namespace grandson
{
    /// <summary>
    /// Interaction logic for Root.xaml
    /// </summary>
    public partial class Root : UserControl
    {
        public Root()
        {
            InitializeComponent();
        }

        public Control Children
        {
            get { return this.ContentControl; }
        }
    }
}

名称空间孙子
{
/// 
///Root.xaml的交互逻辑
/// 
公共部分类根：UserControl
{
公共根（）
{
初始化组件（）；
}
公共控制儿童
{
获取{返回this.ContentControl；}
}
}
}

通过这种方式：

<Window x:Class="grandson.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:grandson"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <local:Root x:Key="RootControl"/>
    </Window.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <TextBlock Text="{Binding Path=Content.Children.Content.DataContext.Text, 
            ElementName=ContentControl}"/>

        <ContentControl Name="ContentControl" Grid.Column="1" Content="{StaticResource RootControl}" />
    </Grid>
</Window>

<TextBlock Text="{Binding ElementName=ContentControl,Path=Content.DataContext.Property}"/>

namespace grandson
{
    /// <summary>
    /// Interaction logic for Root.xaml
    /// </summary>
    public partial class Root : UserControl
    {
        public Root()
        {
            InitializeComponent();
        }

        public Control Children
        {
            get { return this.ContentControl; }
        }
    }
}

<Window x:Class="grandson.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:grandson"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <local:Root x:Key="RootControl"/>
    </Window.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <TextBlock Text="{Binding Path=Content.Children.Content.DataContext.Text, 
            ElementName=ContentControl}"/>

        <ContentControl Name="ContentControl" Grid.Column="1" Content="{StaticResource RootControl}" />
    </Grid>
</Window>