XmlTextReader.WhitespaceHandling Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets or sets a value that specifies how white space is handled.
public:
property System::Xml::WhitespaceHandling WhitespaceHandling { System::Xml::WhitespaceHandling get(); void set(System::Xml::WhitespaceHandling value); };
public System.Xml.WhitespaceHandling WhitespaceHandling { get; set; }
member this.WhitespaceHandling : System.Xml.WhitespaceHandling with get, set
Public Property WhitespaceHandling As WhitespaceHandling
Property Value
One of the WhitespaceHandling values. The default is WhitespaceHandling.All
(returns Whitespace
and SignificantWhitespace
nodes).
Exceptions
Invalid value specified.
Setting this property when the reader is closed (ReadState is ReadState.Closed
).
Examples
The following example reads an XML fragment.
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
void ReadXML( XmlParserContext^ context, String^ xmlFrag, WhitespaceHandling ws )
{
//Create the reader and specify the WhitespaceHandling setting.
XmlTextReader^ reader = gcnew XmlTextReader( xmlFrag,XmlNodeType::Element,context );
reader->WhitespaceHandling = ws;
//Parse the XML and display each of the nodes.
while ( reader->Read() )
{
switch ( reader->NodeType )
{
case XmlNodeType::Element:
Console::WriteLine( "{0}: <{1}>", reader->NodeType, reader->Name );
break;
case XmlNodeType::Text:
Console::WriteLine( "{0}: {1}", reader->NodeType, reader->Value );
break;
case XmlNodeType::EndElement:
Console::WriteLine( "{0}: </{1}>", reader->NodeType, reader->Name );
break;
case XmlNodeType::Whitespace:
Console::WriteLine( "{0}:", reader->NodeType );
break;
case XmlNodeType::SignificantWhitespace:
Console::WriteLine( "{0}:", reader->NodeType );
break;
}
}
//Close the reader.
reader->Close();
}
int main()
{
//Create the XML fragment to be parsed.
String^ xmlFrag = "<book> "
" <title>Pride And Prejudice</title>"
" <genre>novel</genre>"
"</book>";
//Create the XmlNamespaceManager.
NameTable^ nt = gcnew NameTable;
XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager( nt );
//Create the XmlParserContext.
XmlParserContext^ context = gcnew XmlParserContext( nullptr,nsmgr,nullptr,XmlSpace::Default );
Console::WriteLine( "Read the XML and ignore all white space..." );
ReadXML( context, xmlFrag, WhitespaceHandling::None );
Console::WriteLine( "\r\nRead the XML including white space nodes..." );
ReadXML( context, xmlFrag, WhitespaceHandling::All );
}
using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main(){
//Create the XML fragment to be parsed.
string xmlFrag ="<book> " +
" <title>Pride And Prejudice</title>" +
" <genre>novel</genre>" +
"</book>";
//Create the XmlNamespaceManager.
NameTable nt = new NameTable();
XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
//Create the XmlParserContext.
XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.Default);
Console.WriteLine("Read the XML and ignore all white space...");
ReadXML(context, xmlFrag, WhitespaceHandling.None);
Console.WriteLine("\r\nRead the XML including white space nodes...");
ReadXML(context, xmlFrag, WhitespaceHandling.All);
}
public static void ReadXML(XmlParserContext context, string xmlFrag, WhitespaceHandling ws){
//Create the reader and specify the WhitespaceHandling setting.
XmlTextReader reader = new XmlTextReader(xmlFrag, XmlNodeType.Element, context);
reader.WhitespaceHandling = ws;
//Parse the XML and display each of the nodes.
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
Console.WriteLine("{0}: <{1}>", reader.NodeType, reader.Name);
break;
case XmlNodeType.Text:
Console.WriteLine("{0}: {1}", reader.NodeType, reader.Value);
break;
case XmlNodeType.EndElement:
Console.WriteLine("{0}: </{1}>", reader.NodeType, reader.Name);
break;
case XmlNodeType.Whitespace:
Console.WriteLine("{0}:", reader.NodeType);
break;
case XmlNodeType.SignificantWhitespace:
Console.WriteLine("{0}:", reader.NodeType);
break;
}
}
//Close the reader.
reader.Close();
}
} // End class
Imports System.IO
Imports System.Xml
public class Sample
public shared sub Main()
'Create the XML fragment to be parsed.
Dim xmlFrag as string ="<book> " & _
" <title>Pride And Prejudice</title>" & _
" <genre>novel</genre>" & _
"</book>"
'Create the XmlNamespaceManager.
Dim nt as NameTable = new NameTable()
Dim nsmgr as XmlNamespaceManager = new XmlNamespaceManager(nt)
'Create the XmlParserContext.
Dim context as XmlParserContext = new XmlParserContext(nothing, nsmgr, nothing, XmlSpace.Default)
Console.WriteLine("Read the XML and ignore all white space...")
ReadXML(context, xmlFrag, WhitespaceHandling.None)
Console.WriteLine()
Console.WriteLine("Read the XML including white space nodes...")
ReadXML(context, xmlFrag, WhitespaceHandling.All)
end sub
public shared sub ReadXML(context as XmlParserContext, xmlFrag as string, ws as WhitespaceHandling)
'Create the reader and specify the WhitespaceHandling setting.
Dim reader as XmlTextReader = new XmlTextReader(xmlFrag, XmlNodeType.Element, context)
reader.WhitespaceHandling = ws
'Parse the XML and display each of the nodes.
while (reader.Read())
select case reader.NodeType
case XmlNodeType.Element:
Console.WriteLine("{0}: <{1}>", reader.NodeType, reader.Name)
case XmlNodeType.Text:
Console.WriteLine("{0}: {1}", reader.NodeType, reader.Value)
case XmlNodeType.EndElement:
Console.WriteLine("{0}: </{1}>", reader.NodeType, reader.Name)
case XmlNodeType.Whitespace:
Console.WriteLine("{0}:", reader.NodeType)
case XmlNodeType.SignificantWhitespace:
Console.WriteLine("{0}:", reader.NodeType)
end select
end while
'Close the reader.
reader.Close()
end sub
end class
Remarks
Note
Starting with the .NET Framework 2.0, we recommend that you create XmlReader instances by using the XmlReader.Create method to take advantage of new functionality.
This property can be changed at any time and takes effect on the next read operation.
Because the XmlTextReader
does not have DTD information available to it, SignificantWhitespace
nodes are only returned within an xml:space='preserve'
scope.