internal void CopyFixed(NamedBlob source)
{
this.Name = source.Name;
this.CreateDate = source.CreateDate;
this.UpdateDate = source.UpdateDate;
this.Data = null;
}
/// <summary>
/// Only copy those fields that are allowed to change in updates
/// </summary>
internal void ApplyChanges(NamedBlob source)
{
this.Data = source.Data;
this.UpdateDate = DateTimeHelper.Now;
}