listview控件和winform下有很大不同。仅仅是怎样得到listview的选定项,我就摸索了三天时间。现在问题终于解决,现在总结如下:
这个例子是对listview的项进行了分组。MSDN给出了对listview分组的例子。数据源是xml。我们还用这个例子。
xaml中代码如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
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<Window x:Class="listviewapp.Window1"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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Title="Window1" Height="300" Width="300">
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<Window.Resources>
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<XmlDataProvider x:Key="MyData" XPath="/Info">
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<x:XData>
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<Info xmlns="">
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<Item ID="12345" Name="Book 1" Price="$32.05"
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Author="Author A" Catalog="Business"/>
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<Item ID="13590" Name="Book 2" Price="$10.00"
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Author="Author B" Catalog="Language"/>
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<Item ID="24678" Name="Book 3" Price="$9.00"
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Author="Author C" Catalog="Language"/>
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<Item ID="65432" Name="Book 4" Price="$8.50"
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Author="Author D" Catalog="Business"/>
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<Item ID="11233" Name="Book 5" Price="$19.00"
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Author="Author E" Catalog="Health"/>
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<Item ID="94837" Name="Book 6" Price="$8.50"
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Author="Author F" Catalog="Language"/>
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</Info>
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</x:XData>
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</XmlDataProvider>
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<!--<SnippetGroupingCollectionViewSource>-->
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<CollectionViewSource x:Key='src'
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Source="{Binding Source={StaticResource MyData},
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XPath=Item}">
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<CollectionViewSource.GroupDescriptions>
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<PropertyGroupDescription PropertyName="@Catalog" />
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</CollectionViewSource.GroupDescriptions>
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</CollectionViewSource>
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<!--</SnippetGroupingCollectionViewSource>-->
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</Window.Resources>
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<!--<SnippetListViewGroups>-->
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<ListView Name="listViewTask" ItemsSource='{Binding Source={StaticResource src}}'
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BorderThickness="0" SelectionChanged="listViewTask_SelectionChanged" >
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<ListView.GroupStyle>
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<GroupStyle>
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<GroupStyle.ContainerStyle>
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<Style TargetType="{x:Type GroupItem}">
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<Setter Property="Margin" Value="0,0,0,5"/>
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="{x:Type GroupItem}">
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<Expander IsExpanded="True" BorderBrush="#FFA4B97F"
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BorderThickness="0,0,0,1">
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<Expander.Header>
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<DockPanel>
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<TextBlock FontWeight="Bold" Text="{Binding Path=Name}"
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Margin="5,0,0,0" Width="100"/>
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<TextBlock FontWeight="Bold"
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Text="{Binding Path=ItemCount}"/>
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</DockPanel>
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</Expander.Header>
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<Expander.Content>
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<ItemsPresenter />
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</Expander.Content>
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</Expander>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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</Style>
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</GroupStyle.ContainerStyle>
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</GroupStyle>
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</ListView.GroupStyle>
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<!--</SnippetListViewGroups>-->
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<ListView.View>
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<GridView>
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<GridViewColumn Header="ID"
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DisplayMemberBinding="{Binding XPath=@ID}"
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Width="100" />
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<GridViewColumn Header="Name"
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DisplayMemberBinding="{Binding XPath=@Name}"
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Width="140" />
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<GridViewColumn Header="Price"
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DisplayMemberBinding="{Binding XPath=@Price}"
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Width="80" />
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<GridViewColumn Header="Author"
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DisplayMemberBinding="{Binding XPath=@Author}"
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Width="80" />
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</GridView>
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</ListView.View>
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<!--<SnippetListViewEnd>-->
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</ListView>
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<!--</SnippetListViewEnd>-->
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</Window>
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对后台生成的listViewTask_SelectionChanged事件加入如下代码:
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
Code
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private void listViewTask_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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XmlElement mySelectedElement = (XmlElement)listViewTask.SelectedItem;
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string xf = mySelectedElement.GetAttribute("Name").ToString()
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+ " by " + mySelectedElement.GetAttribute("Author").ToString();
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MessageBox.Show(xf);
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}运行结果如下:
![](https://images.cnblogs.com/cnblogs_com/liuyazhou/1.jpg)
如果数据源不是xml。比如是数据库,则可以修改如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
Code
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private void listView_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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DataRowView mySelectedElement =
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(DataRowView)listView.SelectedItem;
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string fx = mySelectedElement.Row[1].ToString();
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//+ " by " + mySelectedElement.GetAttribute("Artist").ToString();
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MessageBox.Show(fx);
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}代码下载:代码
这个例子是对listview的项进行了分组。MSDN给出了对listview分组的例子。数据源是xml。我们还用这个例子。
xaml中代码如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](https://images.cnblogs.com/cnblogs_com/liuyazhou/1.jpg)
如果数据源不是xml。比如是数据库,则可以修改如下:
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](https://www.cnblogs.com/Images/dot.gif)
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