Wpf 更改ListBoxItem样式

Wpf 更改ListBoxItem样式,wpf,xaml,Wpf,Xaml,我想做这样的事 <Style TargetType="{x:Type ListBoxItem}" > <Setter Property="Style"> <Setter.Value> <Border Style="{StaticResource BorderStyle}" Width="200" > </Border> &l

我想做这样的事

    <Style TargetType="{x:Type ListBoxItem}"  >
    <Setter Property="Style">
        <Setter.Value>
                <Border Style="{StaticResource BorderStyle}" Width="200" >
                </Border>
        </Setter.Value>
    </Setter>

   </Style>
    <Style x:Key="BorderStyle" TargetType="{x:Type Border}">
    <Setter Property="Background" Value="{StaticResource BackBrush}" />
    <Setter Property="BorderBrush" Value="Black" />
    <Setter Property="BorderThickness" Value="0.5" />
    <Setter Property="CornerRadius" Value="4" />
    <Setter Property="Margin" Value="4" />
    <Setter Property="Padding" Value="4" />
   </Style>

但它给出了下一个错误

无法将“System.Windows.Controls.Border”类型的内容添加到“System.object”类型的对象中

以及使用它的代码

        for (int i = 0; i < 10; i++)
        {
            ListBoxItem lbItem = new ListBoxItem();
            lbItem.Content = "Item" + i;
            lb1.Add(lbItem);


        }
for(int i=0;i<10;i++)
{
ListBoxItem lbItem=新ListBoxItem();
lbItem.Content=“Item”+i;
lb1.增加(lb1项);
}
其中“lb1”是xaml形式的列表框


如何正确地给出ListBoxItemStyle?

您似乎对XAML的语义感到困惑。在您更习惯XAML之前,将其视为C#等价物可能会有所帮助。这就是你现在正在做的事情:

    Style BorderStyle = new Style();
    Border inlineStyle = new Border { Style = BorderStyle };
    Style listBoxItemDefaultStyle = new Style();
    listBoxItemDefaultStyle.Setters.Add(new Setter(StyleProperty, inlineStyle));
    ListBoxItem item = new ListBoxItem { Style = listBoxItemDefaultStyle };
一个问题是,您正在从ListBoxItem样式中的Setter设置ListBoxItem的样式,这当然会导致递归出现某种问题。因此,从我们得到的代码中删除额外的样式:

    Style BorderStyle = new Style();
    Border inlineStyle = new Border { Style = BorderStyle };
    ListBoxItem item = new ListBoxItem { Style = inlineStyle };
这是无效的,因为它正在尝试将样式属性(类型为Style)设置为边框对象。这就是你所看到的错误的核心所在

在这种情况下,您真正想要的是更改ListBoxItem控件模板以合并边框样式。这是修改为使用边框的默认样式,而不是使用TemplateBindings设置其属性的标准样式:

<Style TargetType="{x:Type ListBoxItem}">
    <Setter Property="Background" Value="Transparent"/>
    <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
    <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
    <Setter Property="Padding" Value="2,0,0,0"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ListBoxItem}">
                <Border x:Name="Bd" Style="{StaticResource BorderStyle}" Width="200">
                    <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsSelected" Value="true">
                        <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
                    </Trigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsSelected" Value="true"/>
                            <Condition Property="Selector.IsSelectionActive" Value="false"/>
                        </MultiTrigger.Conditions>
                        <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
                    </MultiTrigger>
                    <Trigger Property="IsEnabled" Value="false">
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


您想做什么?你能再解释一下吗!我想为listBoxItem创建自己的样式。我希望列表框中的每一项都有我上面显示的边框样式