WPF 数据绑定到窗口
本文关键字:窗口 数据绑定 WPF | 更新日期: 2023-09-27 17:56:20
我想将列表框项的数据绑定与新窗口链接
"名称"按钮应打开一个新窗口,其中包含列表框项的数据绑定。
绑定是一个.xml文件:
<People>
<Person image="Test.jpg" company="" position="" website="" chat="" notes="">
<Name first_name="Max" second_name="" last_name="Mustermann" salutation="" />
<Email email1="" email2="" email3="" />
<Phone_Numbers business="" private="" mobile="" />
<Business_Adress street="" place="" state="" postalcode="" country="" />
<Private_Adress street="" place="" state="" postalcode="" country="" />
</Person>
</People>
新窗口应链接到人员的名称元素。
虽然会有多个人,但窗口应该链接到正确的人。
这是 XmlDataProvider:
<XmlDataProvider x:Name="XmlData" Source="People.xml" XPath="/People/Person" />
列表框的绑定如下所示:
<ListBox
Grid.Row="0"
IsSynchronizedWithCurrentItem="True"
ItemsSource="{Binding UpdateSourceTrigger=Explicit}"
x:Name="PeopleListBox"
SelectionMode="Single">
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock>
<TextBlock.Text>
<MultiBinding StringFormat="{}{0}, {1} {2}">
<Binding XPath="Name/@last_name" />
<Binding XPath="Name/@first_name" />
<Binding XPath="Name/@second_name" />
</MultiBinding>
</TextBlock.Text>
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
除非DataContext
设置为XmlData
否则ItemsSource
绑定将不起作用。您没有提到在哪里定义XmlDataProvider
因为如果在Resources
中,则需要指定x:Key
而不是x:Name
,然后您必须将其指定为Binding.Source
。您也没有说明People.xml
是什么,因为它必须作为资源添加到您的解决方案中
<Window ...>
<Window.Resources>
<XmlDataProvider x:Key="XmlData" XPath="/People/Person" Source="People.xml"/>
</Window.Resources>
<ListBox ItemsSource="{Binding Source={StaticResource XmlData}}">
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock>
<TextBlock.Text>
<MultiBinding StringFormat="{}{0}, {1} {2}">
<Binding XPath="Name/@last_name" />
<Binding XPath="Name/@first_name" />
<Binding XPath="Name/@second_name" />
</MultiBinding>
</TextBlock.Text>
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Window>
或者您可以通过在代码中手动设置XmlDataProvider.Source
来手动加载它