HtmlAgilityPack.HtmlNode.RemoveChild C# (CSharp) Method

		public HtmlNode RemoveChild(HtmlNode oldChild)
		{
			if (oldChild == null)
			{
				throw new ArgumentNullException("oldChild");
			}

			int index = -1;

			if (_childnodes != null)
			{
				index = _childnodes[oldChild];
			}

			if (index == -1)
			{
				throw new ArgumentException(HtmlDocument.HtmlExceptionRefNotChild);
			}

			_childnodes.Remove(index);

			_ownerdocument.SetIdForNode(null, oldChild.GetId());
			_outerchanged = true;
			_innerchanged = true;
			return oldChild;
		}

		public static void RemoveChildKeepGrandChildren ( HtmlNode parent , HtmlNode oldChild )
		{
			if ( oldChild.ChildNodes != null )
			{
				HtmlNode previousSibling = oldChild.PreviousSibling;
				foreach ( HtmlNode newChild in oldChild.ChildNodes )
				{
					parent.InsertAfter ( newChild , previousSibling );
					previousSibling = newChild;  // Missing line in HtmlAgilityPack
				}
			}
			parent.RemoveChild ( oldChild );
		}