XmlTextReader.IsEmptyElement 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 a value indicating whether the current node is an empty element (for example, <MyElement/>
).
public:
virtual property bool IsEmptyElement { bool get(); };
public override bool IsEmptyElement { get; }
member this.IsEmptyElement : bool
Public Overrides ReadOnly Property IsEmptyElement As Boolean
Property Value
true
if the current node is an element (NodeType equals XmlNodeType.Element
) that ends with />
; otherwise, false
.
Examples
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^ reader = nullptr;
try
{
//Load the reader with the XML file.
reader = gcnew XmlTextReader( "elems.xml" );
//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();
}
}
using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main()
{
XmlTextReader reader = null;
try
{
//Load the reader with the XML file.
reader = new XmlTextReader("elems.xml");
//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 != null)
reader.Close();
}
}
} // End class
Option Strict
Option Explicit
Imports System.IO
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim reader As XmlTextReader = Nothing
Try
'Load the reader with the XML file.
reader = New XmlTextReader("elems.xml")
'Parse the XML and display the text content of each of the elements.
While reader.Read()
If reader.IsStartElement() Then
If reader.IsEmptyElement Then
Console.WriteLine("<{0}/>", reader.Name)
Else
Console.Write("<{0}>" + " ", reader.Name)
reader.Read() 'Read the start tag.
If (reader.IsStartElement()) 'Handle nested elements.
Console.WriteLine()
Console.Write("<{0}>", reader.Name)
End If
Console.WriteLine(reader.ReadString()) 'Read the text content of the element.
End If
End If
End While
Finally
If Not (reader Is Nothing) Then
reader.Close()
End If
End Try
End Sub
End Class
The example uses the file, elems.xml
, as input.
<book>
<title>Pride And Prejudice</title>
<price>19.95</price>
<misc/>
</book>
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 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.
IsEmptyElement
simply reports whether or not the element in the source document had an end element tag.
Applies to
See also
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