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XmlValidatingReader::IsEmptyElement Property

 

Gets a value indicating whether the current node is an empty element (for example, <MyElement/>).

Namespace:   System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public:
property bool IsEmptyElement {
	virtual bool get() override;
}

Property Value

Type: System::Boolean

true if the current node is an element (NodeType equals XmlNodeType.Element) that ends with />; otherwise, false.

System_CAPS_noteNote

The XmlValidatingReader class is obsolete in .NET Framework 2.0. You can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. For more information, see the Remarks section of the XmlReader reference page.

This property enables you to determine the difference between the following:

<item num="123"/> (IsEmptyElement is true).

<item num="123"> (IsEmptyElement is false, although element content is empty).

A corresponding EndElement node is not generated for empty elements.

If default content has been added to an element due to schema validation, IsEmptyElement still returns true. It has no bearing on whether or not the element has a default value. In other words, IsEmptyElement simply reports whether or not the element in the source document had an end element tag.

The following example displays the text content of each element.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlTextReader^ txtreader = nullptr;
   XmlValidatingReader^ reader = nullptr;
   try
   {

      //Implement the readers.
      txtreader = gcnew XmlTextReader( "elems.xml" );
      reader = gcnew XmlValidatingReader( txtreader );

      //Parse the XML and display the text content of each of the elements.
      while ( reader->Read() )
      {
         if ( reader->IsStartElement() )
         {
            if ( reader->IsEmptyElement )
                        Console::WriteLine( "<{0}/>", reader->Name );
            else
            {
               Console::Write( "<{0}> ", reader->Name );
               reader->Read(); //Read the start tag.
               if ( reader->IsStartElement() )

               //Handle nested elements.
               Console::Write( "\r\n<{0}>", reader->Name );
               Console::WriteLine( reader->ReadString() ); //Read the text content of the element.
            }
         }
      }
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}

The example uses the file, elems.xml, as input.

<book>
  <title>Pride And Prejudice</title>
  <price>19.95</price>
  <misc/>
</book>

.NET Framework
Available since 1.1
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