wpf 无法将“样式”类型的值添加到“UIElementCollection”类型的集合或字典中
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A value of type 'Style' cannot be added to a collection or dictionary of type 'UIElementCollection'
提问by Ekta
I have the following XAML code. I want alternate lines in my listview which will be populated dynamically though the code at run time. I'm using the following XAML code but it give error called Error8 A value of type 'Style' cannot be added to a collection or dictionary of type 'UIElementCollection'.
我有以下 XAML 代码。我希望我的列表视图中的备用行将在运行时通过代码动态填充。我正在使用以下 XAML 代码，但它给出了名为 Error8 的错误“样式”类型的值无法添加到“UIElementCollection”类型的集合或字典中。
<ListView Grid.Column="1" Grid.Row="10" BorderBrush="#FFA8CC7B" Height="133" HorizontalAlignment="Left" Margin="0,0,0,93" Name="lstViewAppsList" VerticalAlignment="Top" Width="596"
ItemContainerStyle="{StaticResource alternatingStyle}" AlternationCount="2">
<ListView.View>
<GridView>
<GridViewColumn Header="Apps" Width="150" />
<GridViewColumn Header="Package" Width="350" />
</GridView>
</ListView.View>
</ListView>
<Style x:Key="alternatingStyle" TargetType="{x:Type ListViewItem}">
<Style.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="BValue="LightSkyBlue"></Setter>
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="LightGray"></Setter>
</Trigger>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="Orange"/>
</Trigger>
</Style.Triggers>
</Style>
回答by sa_ddam213
It needs to be in a ResourceDictionaryof some sort, you can add to the ListViewor the Window/Pageresources or even an external resource file
它需要ResourceDictionary某种形式的，您可以添加到ListView或Window/Page资源甚至外部资源文件
<ListView.Resources>
<Style x:Key="alternatingStyle" TargetType="{x:Type ListViewItem}">
......
</Style>
<ListView.Resources>
So to add it to your example above
所以把它添加到你上面的例子中
<ListView Grid.Column="1" Grid.Row="10" BorderBrush="#FFA8CC7B" Height="133" HorizontalAlignment="Left" Margin="0,0,0,93" Name="lstViewAppsList" VerticalAlignment="Top" Width="596" AlternationCount="2">
<ListView.Resources>
<Style TargetType="{x:Type ListViewItem}">
......
</Style>
<ListView.Resources>
<ListView.View>
<GridView>
<GridViewColumn Header="Apps" Width="150" />
<GridViewColumn Header="Package" Width="350" />
</GridView>
</ListView.View>
</ListView>
回答by user3222026
You need to place this style in ResourceDictionary. If you are using , Place the style as follows,
您需要将此样式放在 ResourceDictionary 中。如果您正在使用，请按如下方式放置样式，
<Window.Resources>
<Style x:Key="alternatingStyle" TargetType="{x:Type ListViewItem}">
</Style>
</Window.Resources>
Regards, Riyaj Ahamed I
问候， 里亚杰·艾哈迈德一世
