GetEntityReferenceProperty(this ITrackable entity, PropertyInfo property)
{
return(entity.GetEntityReferenceProperty <ITrackable>(property));
}
private static void SetEntityProperties(this ITrackable targetItem, ITrackable sourceItem,
ITrackingCollection changeTracker)
{
// List of 'prop.SetValue' actions
var actions = new List <Action>();
// Iterate simple properties
#if SILVERLIGHT || NET40
foreach (var prop in targetItem.GetType().GetProperties().Where(p => p.CanWrite)
#else
foreach (var prop in targetItem.GetType().GetTypeInfo().DeclaredProperties
.Where(p => p.CanWrite && !p.GetMethod.IsPrivate)
#endif
.Except(targetItem.GetNavigationProperties(false).Select(np => np.Property)))
{
// Skip tracking properties
if (prop.Name == Constants.TrackingProperties.TrackingState ||
prop.Name == Constants.TrackingProperties.ModifiedProperties)
{
continue;
}
// Get source item prop value
object sourceValue = prop.GetValue(sourceItem, null);
object targetValue = prop.GetValue(targetItem, null);
// Continue if source is null or source and target equal
if (sourceValue == null || sourceValue.Equals(targetValue))
{
continue;
}
// Deferred 'SetValue'
actions.Add(() => prop.SetValue(targetItem, sourceValue, null));
}
// Iterate entity reference properties (skip collections)
foreach (var refProp in targetItem
.GetNavigationProperties(false)
.OfReferenceType()
.Where(np => np.Property.CanWrite))
{
ITrackable targetValue = refProp.EntityReference;
// Skip non-null trackable
if (targetValue != null)
{
continue;
}
ITrackable sourceValue = sourceItem.GetEntityReferenceProperty(refProp.Property).EntityReference;
// Continue if source is null
if (sourceValue == null)
{
continue;
}
// Deferred 'SetValue'
actions.Add(() => refProp.Property.SetValue(targetItem, sourceValue, null));
}
// Nothing to do?
if (!actions.Any())
{
return;
}
// Turn off change-tracking
bool isTracking = changeTracker.Tracking;
changeTracker.Tracking = false;
// Set target item prop value
foreach (var action in actions)
{
action();
}
// Reset change-tracking
changeTracker.Tracking = isTracking;
}
