如何将XML与命名空间绑定到WPF DataGrid？

I have a use-case where I need to bind data from an XML file to a WPF DataGrid. I prepared this example to demonstrate what I'll be doing in my final code.

我有一个用例，我需要将XML文件中的数据绑定到WPF DataGrid。我准备这个例子来演示我将在最终代码中做什么。

This is Books.xml:

这是Books.xml：


 <?xml version="1.0" encoding="utf-8" ?>
 <library>
   <books>
  <book id="1" name="The First Book" author="First Author">
    First Book Content
  </book>
  <book id="2" name="The Second Book" author="Second Author">
    Second Book Content
  </book>
   </books>
 </library>

And here is how I bind it my DataGrid control. First XAML:

这是我如何绑定我的DataGrid控件。第一个XAML：


<Window x:Class="LinqToXmlBinding.Window1"
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit"
 Title="Window1" Height="300" Width="400">
 <Grid>
  <Grid.ColumnDefinitions>
   <ColumnDefinition Width="268*" />
   <ColumnDefinition Width="110*" />
  </Grid.ColumnDefinitions>
  <toolkit:DataGrid Name="xmlBoundDataGrid" Margin="1" ItemsSource="{Binding Path=Elements[book]}">
   <toolkit:DataGrid.Columns>
    <toolkit:DataGridTextColumn Header="Book ID" Binding="{Binding Path=Attribute[id].Value}"/>
    <toolkit:DataGridTextColumn Header="Book Name" Binding="{Binding Path=Attribute[name].Value}"/>
    <toolkit:DataGridTextColumn Header="Content" Binding="{Binding Path=Value}"/>
   </toolkit:DataGrid.Columns>
  </toolkit:DataGrid>
  <StackPanel Name="myStackPanel" Grid.Column="1">
   <Button Name="bindToXmlButton" Click="bindToXmlButton_Click">Bind To XML</Button>
  </StackPanel>
 </Grid>
</Window>

Then, C# code:

然后，C＃代码：


const string _xmlFilePath = "..//..//Books.xml";
private void bindToXmlButton_Click(object sender, RoutedEventArgs e)
{
     XElement books = XElement.Load(_xmlFilePath).Element(myNameSpace + "books");
     xmlBoundDataGrid.DataContext = books;
}

Now, if I defined an XML namespace at the root element of Books.XML to be http://my.namespace.com/books; I know I can get that namespace programmatically like so:

现在，如果我将Books.XML的根元素的XML命名空间定义为http://my.namespace.com/books;我知道我可以通过编程方式获得该命名空间：


XNamespace myNameSpace = XElement.Load(_xmlFilePath).Attribute("xmlns").Value;

But, how can I retrieve this namespace in XAML in order to access the "book" element? And what are the best practices in that regard?

但是，如何在XAML中检索此命名空间以访问“book”元素？那方面的最佳做法是什么？

Thank you very much.

非常感谢你。

1 个解决方案

#1

Sorry if I got you wrong, but

对不起，如果我弄错了，但是

If you need to access elements from default namespace like xmlns="...", you should use regular syntax like Path=Attribute[name].Value

如果需要访问默认命名空间中的元素，如xmlns =“...”，则应使用常规语法，如Path = Attribute [name] .Value
If you have XML with namespace with prefix, like xmlns:ns="..." and elements inside this namespace like , you may try to use Path=Elements["ns:book"]

如果你的XML带有带前缀的命名空间，比如xmlns：ns =“...”和这个命名空间里面的元素，你可以尝试使用Path = Elements [“ns：book”]

Hope this helps.

希望这可以帮助。

#1