private void BackupProposedValueIfNeeded(DataProperty property, Object oldValue) { if (_preproposedValuesMap == null) { _preproposedValuesMap = new BackupValuesMap(); } else { if (_preproposedValuesMap.ContainsKey(property.Name)) { return; } } _preproposedValuesMap.Add(property.Name, oldValue); }
private void BackupOriginalValueIfNeeded(DataProperty property, Object oldValue) { if (_originalValuesMap == null) { _originalValuesMap = new BackupValuesMap(); } else { if (_originalValuesMap.ContainsKey(property.Name)) { return; } } // reference copy of complex object is deliberate - actual original values will be stored in the co itself. _originalValuesMap.Add(property.Name, oldValue); }
private ReadOnlyDictionary <String, Object> HandleNull(BackupValuesMap map) { return((map ?? BackupValuesMap.Empty).ReadOnlyDictionary); }