wpf 如何使 ListViewItem 的模板样式和 ListView.ItemTemplate 都能工作？
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How to make both ListViewItem's template style and ListView.ItemTemplate working?
提问by user3819226
I have the code below in my App.xaml. I override the template to make the background stays the same as transparent when I click/hover on a ListViewItem.
我的 App.xaml 中有以下代码。当我在 ListViewItem 上单击/悬停时，我会覆盖模板以使背景保持透明。
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Height" Value="{StaticResource RowHeight}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border
BorderBrush="Transparent"
BorderThickness="0"
Background="{TemplateBinding Background}">
<GridViewRowPresenter HorizontalAlignment="Stretch" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Width="Auto" Margin="0" Content="{TemplateBinding Content}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And I asked a question yesterday How to add a underlying progressbar across two or more ListViewItem in wpf?So I wrote below and it works greatly if I didn't apply the style above. If I do so, I will see nothing in the ListView.
我昨天问了一个问题 如何在 wpf 中跨两个或多个 ListViewItem 添加底层进度条？所以我写在下面，如果我不应用上面的样式，它会很有用。如果我这样做，我将在 ListView 中看不到任何内容。
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<ProgressBar Grid.ColumnSpan="2" Grid.ZIndex="0" Value="{Binding ProgressBarValue}"/>
<Label Grid.Column="0" Grid.ZIndex="1" Content="{Binding CCC}"/>
<Label Grid.Column="1" Grid.ZIndex="1" Content="{Binding DDD}"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
I do need to make the background transparent but why won't these codes work together? How can I improve?
我确实需要使背景透明，但为什么这些代码不能一起工作？我该如何改进？
In addition, how do you guys know what's wrong here? I have no idea where can I find reference/explanations or to study the mechanism behind xaml code..
另外，你们怎么知道这里出了什么问题？我不知道在哪里可以找到参考/解释或研究 xaml 代码背后的机制..
回答by Dinesh balan
Try Like this:
试试这样：
<ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border
BorderBrush="Transparent"`enter code here`
BorderThickness="0"
Background="{TemplateBinding Background}">
<GridViewRowPresenter HorizontalAlignment="Stretch" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Width="Auto" Margin="0" Content="{TemplateBinding Content}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<Grid Background="Red">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<ProgressBar Grid.ColumnSpan="2" Grid.ZIndex="0" Value="30"/>
<Label Grid.Column="0" Grid.ZIndex="1" Content="{binding}"/>
<Label Grid.Column="1" Grid.ZIndex="1" Text="{binding}"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
And I am using the book WPF 4.5 Unleashedas reference for Xaml.
我使用WPF 4.5 Unleashed这本书作为 Xaml 的参考。
