我尝试创建一个ListView
,它没有悬停和选定的样式,但ListViewItem
的颜色交替出现。
要禁用我设置ItemContainerStyle
的样式。问题是表达式ListView.AlternationIndex
在某种程度上总是评估为0
Christian Mosers
WPF Inspector
告诉我。这导致所有项目的背景颜色为红色。
<ListView ItemsSource="{Binding Configuration}" AlternationCount="2" >
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<Border>
<Border.Style>
<Style TargetType="Border">
<Style.Triggers>
<Trigger Property="ListView.AlternationIndex" Value="0">
<Setter Property="Background" Value="Red" />
</Trigger>
<Trigger Property="ListView.AlternationIndex" Value="1">
<Setter Property="Background" Value="Blue" />
</Trigger>
</Style.Triggers>
</Style>
</Border.Style>
<ContentPresenter />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
如何在没有选定和悬停样式的情况下交替着色项目?
(第一项的背景颜色应为红色,第二项蓝色中的一项为红色,其中一项为红色,依此类推)
(当鼠标悬停在ListViewItem
或选择ListViewItem
时,Backgroundcolor,边框,填充,边距等不应更改
Name
属性。
<ListView ItemsSource="{Binding Configuration}" AlternationCount="2" >
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Style.Triggers>
<Trigger Property="ListBox.AlternationIndex" Value="0">
<Setter Property="Border.Background" Value="Red" />
</Trigger>
<Trigger Property="ListBox.AlternationIndex" Value="1">
<Setter Property="Border.Background" Value="Blue" />
</Trigger>
</Style.Triggers>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<Border Background="{TemplateBinding Background}">
<ContentPresenter Content="{TemplateBinding Content}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
答案 0 :(得分:1)
将触发器放入<ControlTemplate.Triggers>
:
<ListView ItemsSource="{Binding Configuration}" AlternationCount="2" >
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<Border x:Name="Border">
<ContentPresenter />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" Value="Red" TargetName="Border" />
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="Blue" TargetName="Border" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
答案 1 :(得分:0)
触发器必须位于控件模板上;边境对其父母一无所知。
但是由于要设置的属性(背景)位于边框上,因此您必须为其命名并使用TargetName。
<ListView AlternationCount="2" >
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border Name="border">
<ContentPresenter/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" TargetName="border" Value="Red" />
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" TargetName="border" Value="Blue" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
<ListViewItem Content="ABC"/>
<ListViewItem Content="DEF"/>
<ListViewItem Content="GHI"/>
<ListViewItem Content="JKL"/>
</ListView>