C# 带有项目/数据模板的 WPF 自定义控件
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WPF Custom Control with Item/Data Templates
提问by Justin Bozonier
I know how to create a custom user control in WPF but how can I make it so that someone can provide an ItemTemplate?
我知道如何在 WPF 中创建自定义用户控件，但如何制作它以便有人可以提供 ItemTemplate？
I have a user control that is a mixture of several other WPF controls, one of them being a ListBox. I'd like to let the user of the control specify the content of the list box but I'm not sure how to pass that information through.
我有一个用户控件，它混合了其他几个 WPF 控件，其中一个是 ListBox。我想让控件的用户指定列表框的内容，但我不确定如何传递该信息。
EDIT: The accepted answer works with the following correction:
编辑：接受的答案适用于以下更正：
<UserControl x:Class="WpfApplication6.MyControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:src="clr-namespace:WpfApplication6">
<ListBox ItemTemplate="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type src:MyControl}}, Path=ItemsSource}" />
</UserControl>
采纳答案by Todd White
You will want to add a DependencyProperty to your control. The xaml will look slightly different if you are deriving from UserControl or Control.
您需要将 DependencyProperty 添加到您的控件中。如果您从 UserControl 或 Control 派生，则 xaml 看起来会略有不同。
public partial class MyControl : UserControl
{
public MyControl()
{
InitializeComponent();
}
public static readonly DependencyProperty ItemTemplateProperty =
DependencyProperty.Register("ItemTemplate", typeof(DataTemplate), typeof(MyControl), new UIPropertyMetadata(null));
public DataTemplate ItemTemplate
{
get { return (DataTemplate) GetValue(ItemTemplateProperty); }
set { SetValue(ItemTemplateProperty, value); }
}
}
Here is xaml for a UserControl.
这是 UserControl 的 xaml。
<UserControl x:Class="WpfApplication6.MyControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:src="clr-namespace:WpfApplication6">
<ListBox ItemTemplate="{Binding ItemTemplate, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type src:MyControl}}}" />
</UserControl>
Here is xaml for a Control:
这是控件的 xaml：
<Style TargetType="{x:Type src:MyControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type src:MyControl}">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ListBox ItemTemplate="{TemplateBinding ItemTemplate}" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
