Sample004 DataBinding_XmlDataSource

最新推荐文章于 2025-06-03 21:29:52 发布

转载最新推荐文章于 2025-06-03 21:29:52 发布 · 232 阅读

.Net应用技术专栏收录该内容

123 篇文章

订阅专栏

本文展示了一个使用WPF进行XML数据绑定的例子。通过XPath表达式筛选库存中的书籍和CD，特别是那些缺货或数量特定的商品。

XmlDataSource

<Window x:Class="XmlDataSource.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:XmlDataSource"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <StackPanel>
        <StackPanel.Resources>
        <XmlDataProvider x:Key="InventoryData" XPath="Inventory/Books">
            <x:XData>
                <Inventory xmlns="">
                    <Books>
                        <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>
                    <CDs>
                        <CD Stock="in" Number="3">
                            <Title>Classical Collection</Title>
                            <Summary>Classical Music</Summary>
                        </CD>
                        <CD Stock="out" Number="9">
                            <Title>Jazz Collection</Title>
                            <Summary>Jazz Music</Summary>
                        </CD>
                    </CDs>
                </Inventory>
            </x:XData>
        </XmlDataProvider>
    </StackPanel.Resources>

    <TextBlock FontSize="18" FontWeight="Bold" Margin="10"
    HorizontalAlignment="Center">XML Data Source Sample</TextBlock>
    <ListBox
    Width="400" Height="300" Background="Honeydew">
        <ListBox.ItemsSource>
            <Binding Source="{StaticResource InventoryData}"
               XPath="*[@Stock='out'] | *[@Number>=8 or @Number=3]"/>
        </ListBox.ItemsSource>

        <!--Alternatively, you can do the following. -->
        <!--<ListBox Width="400" Height="300" Background="Honeydew"
      ItemsSource="{Binding Source={StaticResource InventoryData},
      XPath=*[@Stock\=\'out\'] | *[@Number>\=8 or @Number\=3]}">-->

        <ListBox.ItemTemplate>
            <DataTemplate>
                <TextBlock FontSize="12" Foreground="Red">
                    <TextBlock.Text>
                        <Binding XPath="Title"/>
                    </TextBlock.Text>
                </TextBlock>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>
    </StackPanel>
</Window>