IXMLDOMNode.firstChild (C#)

The firstChild property contains the first child of the node.

IXMLDOMNode = IXMLDOMNode.firstChild;

Remarks

The property is read-only. It returns the first child node. If there are no children, it returns NULL.

The value of the IXMLDOMNodeIXMLDOMNode Object (C#) returned depends on the type of node on which the firstChild property is called, as shown in the following table. For example, if the node type is NODE_ELEMENT, an IXMLDOMNode object is returned containing the first child node for that element node.

Node type	Value returned
NODE_ATTRIBUTE NODE_DOCUMENT NODE_ELEMENT	Returns the first child node. If there are no children, it returns NULL.
NODE_COMMENT NODE_PROCESSING_INSTRUCTION NODE_TEXT	Returns NULL. This node type cannot have children.

Example

The following example retrieves the first child node of the top-level node.

using Microsoft.WindowsMediaServices.Interop;
using interop_msxml;

// Declare variables.
WMSServer Server;
IXMLDOMDocument Playlist;
IXMLDOMNode currNode;

try {
    // Create a new WMSServer object.
    Server = new WMSServerClass();

    // Create a new playlist object.
    Playlist = Server.CreatePlaylist();

    // Load a playlist.
    Playlist.load("file://c:\\wmpub\\wmroot\\simple.wsx");

    // Retrieve the first child node of the root element.
    currNode = Playlist.documentElement.firstChild;
}
catch (Exception e) {
    // TODO: Handle exceptions.
}

Requirements

Reference: Add references to Microsoft.WindowsMediaServices and interop_msxml.

Namespace: Microsoft.WindowsMediaServices.Interop, interop_msxml.

Assembly: Microsoft.WindowsMediaServices.dll, interop_msxml.dll.

Library: WMSServerTypeLib.dll, msxml.dll.

Platform: Windows Server 2003 family, Windows Server 2008 family.

See Also

Reference

IXMLDOMNode Object (C#)

Concepts

XML DOM Properties (C#)