/// <summary>
/// Handles changing between types
/// </summary>
/// <param name="propDetails">The cached details for the current property</param>
/// <param name="newSelection">The new selection</param>
protected void HandleTypeChange(CacheItem propDetails, string newSelection)
{
Type selectedType = Type.GetType(newSelection);
if (selectedType != null && selectedType == propDetails.SelectedType)
{
return;
}
Undo.RegisterCompleteObjectUndo(
propDetails.ReferenceInformation.Owner.targetObject, "Poco Info");
SerializedPoco poco = propDetails.ReferenceInformation.PocoInstance;
System.Object oldItem = poco.Value;
MethodInfo method = typeof(SerializedPoco).GetMethod("SerializePoco", BindingFlags.NonPublic | BindingFlags.Instance);
string serialized = method.Invoke(poco, new object[] { false }) as string;
propDetails.ClearPocoValue();
propDetails.SetType(newSelection);
propDetails.ReferenceInformation.ResetInstanceData();
// If the new type is a POCO
if (propDetails.Display == DisplayMode.SystemObjectDisplay)
{
InitializePoco(propDetails);
if (oldItem != null && propDetails.SelectedType != null)
{
// Determine if the new type is a parent or descendant of the old
// type so that we can transfer some of the properties
if (propDetails.SelectedType.IsSubclassOf(oldItem.GetType()) ||
oldItem.GetType().IsSubclassOf(propDetails.SelectedType))
{
MethodInfo deserialize = typeof(SerializedPoco).GetMethod("DeserializePoco", BindingFlags.NonPublic | BindingFlags.Instance);
deserialize.Invoke(poco, new object[] { poco.Value, serialized });
propDetails.ReferenceInformation.Owner.ApplyModifiedProperties();
propDetails.ReferenceInformation.Owner.Update();
// Clear the cache to force a re-draw since there is something
// that I am caching that prevents the update
drawerCache.Clear();
}
}
}
}