Question

我有一个TabItem，它的DataContext设置为ViewModel。标题设置为标题视图，内容设置为项目视图

然而，从项目视图中这个绑定不起作用

<TextBox Margin="0" Grid.Column="0" Grid.Row="0" Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=sdk:TabItem, AncestorLevel=1}, Path=DataContext.Job.SourceCode, Mode=TwoWay}"/>

还有这个绑定

<TextBlock Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=sdk:TabItem, AncestorLevel=1}, Path=DataContext.Job.Name}"/>

标题视图中的

工作正常。

我甚至尝试将Header中的TextBlock放入Item中，并将Content设置为新的HeaderView。无论我尝试什么，即使标题绑定工作正常，我也无法从内容中获取绑定

任何人都可以解释一下吗？

首先按要求添加完整的视图

<UserControl x:Class="IE.Intergration.JobBuilder.Views.TabbedJobs.TabbedJobItem"
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:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400" 
    DataContext="{Binding Source={StaticResource ViewModelLocator}, Path=New.TabbedJobs.TabbedJobItem}"
    >
<UserControl.Resources>
</UserControl.Resources>
<Grid x:Name="LayoutRoot" >
    <Grid.ColumnDefinitions>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="*"  />
        <RowDefinition Height="40"/>
    </Grid.RowDefinitions> 
    <TextBox Margin="0" Grid.Column="0" Grid.Row="0" Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=sdk:TabItem, AncestorLevel=1}, Path=DataContext.Job.SourceCode, Mode=TwoWay}"/>
    <StackPanel Grid.Column="0" Grid.Row="1" FlowDirection="LeftToRight" Orientation="Horizontal">
        <Button Content="Save" Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=sdk:TabItem, AncestorLevel=1}, Path=DataContext.Save}" /> 
    </StackPanel>
</Grid>

和标题

<UserControl x:Class="IE.Intergration.JobBuilder.Views.TabbedJobs.TabbedJobItemHeader"
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:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400"
    DataContext="{Binding Source={StaticResource ViewModelLocator}, Path=New.TabbedJobs.TabJobHeader}" 
    >

<Grid x:Name="LayoutRoot">
    <TextBlock Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=sdk:TabItem, AncestorLevel=1}, Path=DataContext.Job.Name}"/>
</Grid>

无法从Silverlight中的TabItem内容绑定到TabItem DataContext

0 个答案: