Finding element in xaml with xpath

Question

This is how i do it now:

XmlDocument InXamlDoc = new XmlDocument();

InXamlDoc.Load(Xml_Reader);

XmlElement xamlRoot = InXamlDoc.DocumentElement;//DOM xaml file

xamlNodeAttrName = xamlRoot.SelectSingleNode("/Grid/CheckBox[1]/@Name");

and xaml file:

<Grid
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
>
  <ListView Margin="181,27,11,102" Name="lvItemMetadata" IsSynchronizedWithCurrentItem="True"/>
  <ListBox HorizontalAlignment="Left" Margin="23,28,0,102" Width="146" Name="lbCheckInItems" IsSynchronizedWithCurrentItem="True"/>
  <CheckBox HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="23,0,0,72" Width="227" Height="17" Name="chkCheckInKmap" Content="Check In the K-map"/>
  <CheckBox HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="23,0,0,51" Width="227" Height="17" Name="chkDeleteOfflineCopies" Content="Delete offline copies"/>
  <TextBlock HorizontalAlignment="Left" VerticalAlignment="Top" Margin="25,7,0,0" Width="165" Height="20" Name="tbCheckInDoc" Text="Documents to check in" TextWrapping="Wrap"/>
  <TextBlock VerticalAlignment="Top" Margin="179,7,176,0" Height="15" Name="tbItemMetadata" Text="Metadata" TextWrapping="Wrap" />
  <DockPanel Name="BtnSelectAll" Height="19" Width="71" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="25,0,0,29">
    <DockPanel.Background>
      <ImageBrush
   ImageSource="DialogButton.gif" >
      </ImageBrush>
    </DockPanel.Background>
    <TextBlock Name="txtBtnSelectAll" Margin="0,-4,0,0" FontSize="10" Foreground="White" HorizontalAlignment="Center" VerticalAlignment="Center" Height="10.9075">Select all</TextBlock>
  </DockPanel>
</Grid>

since xaml have namespaces i cant get the xpath to find the right element, if i remove the namespaces it works fine. How can i use xpath and still have namespaces?

Answer 1

Hi, you need a namespace manager to do that. The following is a sample code that shows you how to create a namespace manager and use it.

XmlNamespaceManager manager = new XmlNamespaceManager(xml.NameTable);
manager.AddNamespace("xaml", "http://schemas.microsoft.com/winfx/2006/xaml/presentation");
manager.AddNamespace("x", "http://schemas.microsoft.com/winfx/2006/xaml");

XmlNodeList nodes = xml.SelectNodes("//xaml:TextBlock", manager);