XmlElement.GetElementsByTagName Method

Definition

Namespace:

System.Xml

Assembly:

System.Xml.ReaderWriter.dll

Returns an XmlNodeList containing a list of all descendant elements that match the specified name.

Overloads

GetElementsByTagName(String, String)	Returns an XmlNodeList containing a list of all descendant elements that match the specified LocalName and NamespaceURI.
GetElementsByTagName(String)	Returns an XmlNodeList containing a list of all descendant elements that match the specified Name.

GetElementsByTagName(String, String)

Source:

XmlElement.cs

Returns an XmlNodeList containing a list of all descendant elements that match the specified LocalName and NamespaceURI.

public:
 virtual System::Xml::XmlNodeList ^ GetElementsByTagName(System::String ^ localName, System::String ^ namespaceURI);

public virtual System.Xml.XmlNodeList GetElementsByTagName (string localName, string namespaceURI);

abstract member GetElementsByTagName : string * string -> System.Xml.XmlNodeList
override this.GetElementsByTagName : string * string -> System.Xml.XmlNodeList

Public Overridable Function GetElementsByTagName (localName As String, namespaceURI As String) As XmlNodeList

Parameters

localName

String

The local name to match. The asterisk (*) is a special value that matches all tags.

namespaceURI

String

The namespace URI to match.

Returns

XmlNodeList

An XmlNodeList containing a list of all matching nodes. The list is empty if there are no matching nodes.

Remarks

The nodes are placed in the order in which they would be encountered in a preorder traversal of the XmlElement tree.

Note

It is recommended that you use the XmlNode.SelectNodes or XmlNode.SelectSingleNode method instead of the GetElementsByTagName method.

GetElementsByTagName(String)

Source:

XmlElement.cs

Returns an XmlNodeList containing a list of all descendant elements that match the specified Name.

public:
 virtual System::Xml::XmlNodeList ^ GetElementsByTagName(System::String ^ name);

public virtual System.Xml.XmlNodeList GetElementsByTagName (string name);

abstract member GetElementsByTagName : string -> System.Xml.XmlNodeList
override this.GetElementsByTagName : string -> System.Xml.XmlNodeList

Public Overridable Function GetElementsByTagName (name As String) As XmlNodeList

Parameters

name

String

The name tag to match. This is a qualified name. It is matched against the Name property of the matching node. The asterisk (*) is a special value that matches all tags.

Returns

XmlNodeList

An XmlNodeList containing a list of all matching nodes. The list is empty if there are no matching nodes.

Examples

The following example gets and displays all the book titles.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;

int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->Load( "2books.xml" );
   
   // Get and display all the book titles.
   XmlElement^ root = doc->DocumentElement;
   XmlNodeList^ elemList = root->GetElementsByTagName( "title" );
   for ( int i = 0; i < elemList->Count; i++ )
   {
      Console::WriteLine( elemList[ i ]->InnerXml );
   }
}

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main()
  {
     XmlDocument doc = new XmlDocument();
     doc.Load("2books.xml");

     // Get and display all the book titles.
     XmlElement root = doc.DocumentElement;
     XmlNodeList elemList = root.GetElementsByTagName("title");
     for (int i=0; i < elemList.Count; i++)
     {
        Console.WriteLine(elemList[i].InnerXml);
     }
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()

    Dim doc as XmlDocument = new XmlDocument()
    doc.Load("2books.xml")
                         
     ' Get and display all the book titles.
     Dim root as XmlElement = doc.DocumentElement
     Dim elemList as XmlNodeList = root.GetElementsByTagName("title")
     Dim i as integer
     for i=0  to elemList.Count-1
        Console.WriteLine(elemList.ItemOf(i).InnerXml)
     next
    
  end sub
end class

The example uses the file, 2books.xml, as input.

<!--sample XML fragment-->
<bookstore>
  <book genre='novel' ISBN='10-861003-324'>
    <title>The Handmaid's Tale</title>
    <price>19.95</price>
  </book>
  <book genre='novel' ISBN='1-861001-57-5'>
    <title>Pride And Prejudice</title>
    <price>24.95</price>
  </book>
</bookstore>

Remarks

The nodes are placed in the order in which they would be encountered in a preorder traversal of the XmlElement tree.

Note

It is recommended that you use the XmlNode.SelectNodes or XmlNode.SelectSingleNode method instead of the GetElementsByTagName method.