Nullable <Guid> GetParentId(string child)
{
string strParent = this.GetStringParent(child);
if (!GuidMap.ContainsKey(strParent))
{
Guid newGuid = Guid.NewGuid();
GuidMap.Add(strParent, newGuid);
return(newGuid);
}
Nullable <Guid> nullGuid = null;
return((!strParent.Equals("ROOT")) ? GuidMap[strParent] : nullGuid);
}
/// <summary>
/// Finds and returns a Guid from the mapping dictionary. If no mapping
/// exists then the original Guid is returned.
/// </summary>
/// <param name="oldGuid">The original Guid value to map from.</param>
/// <returns>The Guid value that should be used, may be the same as oldGuid.</returns>
public Guid FindMappedGuid(Guid oldGuid)
{
return(GuidMap.ContainsKey(oldGuid) ? GuidMap[oldGuid] : oldGuid);
}