XmlNode::PrependChild Method
Adds the specified node to the beginning of the list of child nodes for this node.
Assembly: System.Xml (in System.Xml.dll)
Parameters
- newChild
- Type: System.Xml::XmlNode
The node to add. All the contents of the node to be added are moved into the specified location.
| Exception | Condition |
|---|---|
| InvalidOperationException | This node is of a type that does not allow child nodes of the type of the newChild node. The newChild is an ancestor of this node. |
| ArgumentException | The newChild was created from a different document than the one that created this node. This node is read-only. |
If the newChild is already in the tree, it is removed from its original position and added to its target position. For more information about inserting nodes, see Inserting Nodes into an XML Document.
If the node being inserted was created from another document, you can use XmlDocument::ImportNode to import the node to the current document. The imported node can then be inserted into the current document.
This method is a Microsoft extension to the Document Object Model (DOM).
Notes to InheritorsWhen overriding PrependChild in a derived class, in order for events to be raised correctly, you must call the PrependChild method of the base class.
The following example adds a new node to the XML document.
#using <System.Xml.dll> using namespace System; using namespace System::IO; using namespace System::Xml; int main() { XmlDocument^ doc = gcnew XmlDocument; doc->LoadXml( "<book genre='novel' ISBN='1-861001-57-5'>" "<title>Pride And Prejudice</title>" "</book>" ); XmlNode^ root = doc->DocumentElement; //Create a new node. XmlElement^ elem = doc->CreateElement( "price" ); elem->InnerText = "19.95"; //Add the node to the document. root->PrependChild( elem ); Console::WriteLine( "Display the modified XML..." ); doc->Save( Console::Out ); }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.