/// <summary>
/// Gets the main element.
/// </summary>
/// <param name="xnod">The XML node.</param>
/// <param name="topicsNames">The topics names.</param>
/// <param name="topic">The topic.</param>
/// <returns>Main element of the XML</returns>
private static XmlElement GetMainElement(XmlNode xnod, SortedDictionary <Guid, string> topicsNames, Topic topic)
{
XmlElement mainElementName = null;
if (xnod.NodeType != XmlNodeType.Element)
{
return(null);
}
if (xnod.Name == "topic")
{
if (!IOHelpers.IsGuid(xnod.Attributes["id"].Value))
{
MessageBox.Show("GUID of the topic is invalid", "Invalid GUID!", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
else
{
topic.TopicsGuid = new Guid(xnod.Attributes["id"].Value);
if (!topicsNames.ContainsKey(topic.TopicsGuid))
{
return(null);
}
topic.TopicsTitle = topicsNames[topic.TopicsGuid];
xnod = xnod.FirstChild;
mainElementName = xnod as XmlElement;
return(mainElementName);
}
}
foreach (XmlNode xnodWorking in xnod.ChildNodes)
{
GetMainElement(xnodWorking, topicsNames, topic);
}
return(null);
}