要为
ListView
中的项处理事件,需要为每个
ListViewItem
添加一个事件处理程序。 当
ListView
绑定到数据源时,无需显式创建
ListViewItem
,但可以通过将
EventSetter
添加到
ListViewItem
的样式来处理每个项的事件。
以下示例创建一个数据绑定
ListView
,并创建一个
Style
以向每个
ListViewItem
添加一个事件处理程序。
<!--XmlDataProvider is defined in a ResourceDictionary,
such as Window.Resources-->
<XmlDataProvider x:Key="InventoryData" XPath="Books">
<x:XData>
<Books xmlns="">
<Book ISBN="0-7356-0562-9" Stock="in" Number="9">
<Title>XML in Action</Title>
<Summary>XML Web Technology</Summary>
</Book>
<Book ISBN="0-7356-1370-2" Stock="in" Number="8">
<Title>Programming Microsoft Windows With C#</Title>
<Summary>C# Programming using the .NET Framework</Summary>
</Book>
<Book ISBN="0-7356-1288-9" Stock="out" Number="7">
<Title>Inside C#</Title>
<Summary>C# Language Programming</Summary>
</Book>
<Book ISBN="0-7356-1377-X" Stock="in" Number="5">
<Title>Introducing Microsoft .NET</Title>
<Summary>Overview of .NET Technology</Summary>
</Book>
<Book ISBN="0-7356-1448-2" Stock="out" Number="4">
<Title>Microsoft C# Language Specifications</Title>
<Summary>The C# language definition</Summary>
</Book>
</Books>
</x:XData>
</XmlDataProvider>
<!--The Style is defined in a ResourceDictionary,
such as Window.Resources-->
<Style TargetType="ListViewItem">
<EventSetter Event="MouseDoubleClick" Handler="ListViewItem_MouseDoubleClick"/>
</Style>
<ListView ItemsSource="{Binding Source={StaticResource InventoryData}, XPath=Book}">
<ListView.View>
<GridView>
<GridViewColumn Width="300" Header="Title"
DisplayMemberBinding="{Binding XPath=Title}"/>
<GridViewColumn Width="150" Header="ISBN"
DisplayMemberBinding="{Binding XPath=@ISBN}"/>
</GridView>
</ListView.View>
</ListView>
下面的示例处理 MouseDoubleClick 事件。
void ListViewItem_MouseDoubleClick(object sender, MouseButtonEventArgs e)
XmlElement book = ((ListViewItem) sender).Content as XmlElement;
if (book == null)
return;
if (book.GetAttribute("Stock") == "out")
MessageBox.Show("Time to order more copies of " + book["Title"].InnerText);
MessageBox.Show(book["Title"].InnerText + " is available.");
Private Sub ListViewItem_MouseDoubleClick(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
Dim lvi As ListViewItem = CType(sender, ListViewItem)
Dim book As XmlElement = CType(lvi.Content, XmlElement)
If book.GetAttribute("Stock") = "out" Then
MessageBox.Show("Time to order more copies of " + book("Title").InnerText)
MessageBox.Show(book("Title").InnerText + " is available.")
End If
End Sub
尽管将 ListView 绑定到数据源最常见,但可以使用样式将事件处理程序添加到非数据绑定 ListView 中的每个 ListViewItem,无论是否显式创建 ListViewItem。 有关显式和隐式创建的 ListViewItem 控件的详细信息,请参阅 ItemsControl。
XmlElement
数据绑定概述
样式设置和模板化
使用 XMLDataProvider 和 XPath 查询绑定到 XML 数据
ListView 概述