public HtmlNode InsertAfter(HtmlNode newChild, HtmlNode refChild)
{
if (newChild == null)
{
throw new ArgumentNullException("newChild");
}
if (refChild == null)
{
return(PrependChild(newChild));
}
if (newChild != refChild)
{
int num = -1;
if (_childnodes != null)
{
num = _childnodes[refChild];
}
if (num == -1)
{
throw new ArgumentException(HtmlDocument.HtmlExceptionRefNotChild);
}
if (_childnodes != null)
{
_childnodes.Insert(num + 1, newChild);
}
_ownerdocument.SetIdForNode(newChild, newChild.GetId());
_outerchanged = true;
_innerchanged = true;
}
return(newChild);
}
