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);
}
void InitRoot()
{
GuidMap.Add("ROOT", Guid.NewGuid());
}
/// <summary>
/// Creates a new map entry for the oldGuid. This generates a new Guid and
/// stores a reference between the two.
/// </summary>
/// <param name="oldGuid">The original Guid value to be mapped from.</param>
/// <returns>A new Guid value that should be used in place of oldGuid.</returns>
protected Guid MapNewGuid(Guid oldGuid)
{
GuidMap.Add(oldGuid, Guid.NewGuid());
return(GuidMap[oldGuid]);
}