XmlChildNodes.cs

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using System.Collections;
 
namespace System.Xml;
 
internal sealed class XmlChildNodes : XmlNodeList
{
    private readonly XmlNode _container;
 
    public override int Count
    {
        get
        {
            int num = 0;
            for (XmlNode xmlNode = _container.FirstChild; xmlNode != null; xmlNode = xmlNode.NextSibling)
            {
                num++;
            }
            return num;
        }
    }
 
    public XmlChildNodes(XmlNode container)
    {
        _container = container;
    }
 
    public override XmlNode Item(int i)
    {
        if (i < 0)
        {
            return null;
        }
        XmlNode xmlNode = _container.FirstChild;
        while (xmlNode != null)
        {
            if (i == 0)
            {
                return xmlNode;
            }
            xmlNode = xmlNode.NextSibling;
            i--;
        }
        return null;
    }
 
    public override IEnumerator GetEnumerator()
    {
        if (_container.FirstChild == null)
        {
            return XmlDocument.EmptyEnumerator;
        }
        return new XmlChildEnumerator(_container);
    }
}