/// <summary>
/// Adds the or replace the optional feed reference element.
/// </summary>
/// <param name="newsItem">The news item.</param>
/// <param name="feedUrl">The feed URL.</param>
/// <param name="sourceID">The source ID.</param>
/// <returns></returns>
public static XmlElement AddOrReplaceOriginalFeedReference(INewsItem newsItem, string feedUrl, int sourceID)
{
if (newsItem == null)
{
throw new ArgumentNullException("newsItem");
}
XmlQualifiedName key = AdditionalElements.GetQualifiedName(OriginalFeedRef);
XmlQualifiedName attrKey = AdditionalElements.GetQualifiedName(OriginalSourceID);
if (newsItem.OptionalElements == null)
{
newsItem.OptionalElements = new Dictionary <XmlQualifiedName, string>(2);
}
if (newsItem.OptionalElements.ContainsKey(key))
{
newsItem.OptionalElements.Remove(key);
}
XmlElement element = RssHelper.CreateXmlElement(Prefix, key, feedUrl);
element.Attributes.Append(RssHelper.CreateXmlAttribute(String.Empty, attrKey, sourceID.ToString()));
newsItem.OptionalElements.Add(key, element.OuterXml);
return(element);
}