/// <summary>
/// Loads the content of an editing event.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
/// <returns>The created editing event object</returns>
static internal Change Deserialize(EditDeserializer editDeserializer)
{
Change result = editDeserializer.ReadPersistent <Change>(DataField.Edit);
// Note that calculated geometry is NOT defined at this stage. That happens
// when the model is asked to index the data.
// Associate referenced features with the edit
result.AddReferences();
// If we're dealing with an update, exchange update items. Do this NOW (rather than at it's natural
// spot in the editing sequence) so as to avoid repeated calculation loops during loading. When an
// update is applied during regular editing work, we have to rework the calculation sequence and
// rollforward all the subsequent edits. So we'd have to do that for every update. By applying changes
// now, we'll end up doing a single calculation loop.
UpdateOperation upo = (result as UpdateOperation);
if (upo != null)
{
upo.ApplyChanges();
}
return(result);
}