wpf 如何绑定到 ContentControl 的数据模板中的数据
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How to Bind To Data within a Datatemplate of a ContentControl
提问by markus s
I have the following simplified Example:
我有以下简化示例：
<Window x:Class="TemplateBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary
Source="pack://application:,,,/TemplateBinding;component/PersonTemplate.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Grid>
<ContentControl ContentTemplate="{StaticResource PersonTemplate}" />
</Grid>
</Window>
With:
和：
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<DataTemplate x:Key="PersonTemplate">
<Border Width="100" Height="100" Background="RosyBrown">
<TextBlock Text="{Binding Path=FirstName}" VerticalAlignment="Center" TextAlignment="Center"/>
</Border>
</DataTemplate>
</ResourceDictionary>
as my DataTemplate in a separate ResourceDictionary file.
作为我在单独的 ResourceDictionary 文件中的 DataTemplate。
I set my DataContext in the Construcor of my MainWindow and have verified it by just displaying the first name like this: <ContentControl Grid.Row="1" Content="{Binding FirstName}"/>.
我把我的DataContext在我的主窗口的Construcor并通过只显示这样的名字验证它：<ContentControl Grid.Row="1" Content="{Binding FirstName}"/>。
In an other scenario wher I use a DataTemplate with a ListBoxI do the Binding exactly the same way in my DataTemplate and it just works.
在另一种情况下，当我使用 DataTemplate 时，ListBox我在我的 DataTemplate 中以完全相同的方式进行绑定，并且它只是有效。
I know that the DataTemplate is working except the binding because it correctly shows the size and background color.
我知道除了绑定之外 DataTemplate 正在工作，因为它正确显示了大小和背景颜色。
What am I doing wrong? How would the Binding in my DataTemplate have to look?
我究竟做错了什么？我的 DataTemplate 中的 Binding 必须看起来如何？
回答by Jehof
You need to bind the Contentproperty of the ContentControl
您需要绑定的Content属性ContentControl
<ContentControl Content="{Binding}" ContentTemplate="{StaticResource PersonTemplate}" />
This will set the DataContext of the ContentControl as Content of the control.
这会将 ContentControl 的 DataContext 设置为控件的内容。
Setting only the ContentTemplateproperty is not enough. The ContentControl does not implicitly use its DataContext as Content.
仅设置ContentTemplate属性是不够的。ContentControl 不会隐式地将其 DataContext 用作内容。
