XmlTextReader::LinePosition Property
Gets the current line position.
Assembly: System.Xml (in System.Xml.dll)
Implements
IXmlLineInfo::LinePosition Note |
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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 is most commonly used for error reporting, but can be called at any time. The property's starting value is 1.
The position indicated is the first character of text in the markup.
<root> abc<tag/> </root>
On the first line of the preceding XML text, a LinePosition of 2 corresponds to the character r; on the second line, a LinePosition of 5 corresponds to the character t; and on the third line, a LinePosition of 3 corresponds to the character r.
Combined with LineNumber, a value of 1,1 indicates the start of the document.
The following example displays each node including its depth, line number, and line position.
#using <System.Xml.dll> using namespace System; using namespace System::IO; using namespace System::Xml; int main() { // Create the XML fragment to be parsed. String^ xmlFrag = "<book>\n" "<misc>\n" "<style>paperback</style>\n" "<pages>240</pages>\n" "</misc>\n" "</book>\n"; // Create the XmlNamespaceManager. NameTable^ nt = gcnew NameTable; XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager( nt ); // Create the XmlParserContext. XmlParserContext^ context = gcnew XmlParserContext( nullptr,nsmgr,nullptr,XmlSpace::None ); // Create the reader. XmlTextReader^ reader = gcnew XmlTextReader( xmlFrag,XmlNodeType::Element,context ); // Parse the XML and display each node. while ( reader->Read() ) { switch ( reader->NodeType ) { case XmlNodeType::Element: Console::Write( " {0} {1}, {2} ", reader->Depth, reader->LineNumber, reader->LinePosition ); Console::WriteLine( "< {0}>", reader->Name ); break; case XmlNodeType::Text: Console::Write( " {0} {1}, {2} ", reader->Depth, reader->LineNumber, reader->LinePosition ); Console::WriteLine( " {0}", reader->Value ); break; case XmlNodeType::EndElement: Console::Write( " {0} {1}, {2} ", reader->Depth, reader->LineNumber, reader->LinePosition ); Console::WriteLine( "</ {0}>", reader->Name ); break; } } // Close the reader. reader->Close(); }
Available since 1.1
