Question

我为ListView控件创建自定义视图。

public class CustomView: View{
//...
        public DataTemplate ItemTemplate { get; set; }
//...
}


<CustomView x:Key="Custom">
    <CustomView.ItemTemplate>
        <DataTemplate>
        </DataTemplate>
    </CustomView.ItemTemplate>
</CustomView>

在ListViewItem的样式中，我想在DataTemplate上CustomView.ItemTemplate绑定ContentTemplate。

<Style x:Key="{ComponentResourceKey TypeInTargetAssembly={x:Type CustomView}, ResourceId=CustomViewItem}"
       TargetType="{x:Type ListViewItem}"
       BasedOn="{StaticResource {x:Type ListBoxItem}}">

    <Setter Property="ContentTemplate"
            Value="{Binding Path=View.ItemTemplate, 
                                RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListView}}}" />

    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ListBoxItem}">
                <Border x:Name="ItemBorder">
                    <ContentPresenter />
                </Border>
        </Setter.Value>
    </Setter>
</Style>


<Style x:Key="{ComponentResourceKey TypeInTargetAssembly={x:Type CustomView}, ResourceId=CustomView}"
       TargetType="{x:Type ListView}"
       BasedOn="{StaticResource {x:Type ListBox}}">

</Style>

查看有效但在VS的输出窗口中我收到此错误：

无法找到与引用＆＃39; RelativeSource绑定的源代码 FindAncestor，AncestorType =＆＃39; System.Windows.Controls.ListView＆＃39;， AncestorLevel =＆＃39; 1＆＃39;＆＃39 ;. BindingExpression：路径= View.ItemTemplate; 的DataItem = NULL;目标元素是＆＃39; ListViewItem＆＃39; （名称=＆＃39;＆＃39）;目标属性是＆＃39; ContentTemplate＆＃39; （键入＆＃39; DataTemplate＆＃39;）

Answer 1

公共类CustomListView：ListView {

static CustomListView()


{

DefaultStyleKeyProperty.OverrideMetadata（typeof（CustomListView），new FrameworkPropertyMetadata（typeof运算（CustomListView）））;

}

protected override DependencyObject GetContainerForItemOverride()
{
    return new CustomListViewItem();
}

}

从自定义视图设置ListViewItem的ContentTemplate

1 个答案: