internal protected override object OnDeserialize(SerializationContext serCtx, object mdata, DataNode data)
{
DataCollection items = ((DataItem)data).ItemData;
object position;
object collectionInstance = handler.CreateCollection(out position, items.Count);
Deserialize(serCtx, mdata, items, collectionInstance, position);
return(collectionInstance);
}
void Deserialize(SerializationContext serCtx, object obj, DataCollection itemData, DataItem ukwnDataRoot, string baseName)
{
Hashtable expandedCollections = null;
foreach (DataNode value in itemData)
{
ItemProperty prop = (ItemProperty)properties [baseName + value.Name];
if (prop == null)
{
if (value is DataItem)
{
DataItem root = new DataItem();
root.Name = value.Name;
root.UniqueNames = ((DataItem)value).UniqueNames;
if (ukwnDataRoot != null)
{
ukwnDataRoot.ItemData.Add(root);
}
Deserialize(serCtx, obj, ((DataItem)value).ItemData, root, baseName + value.Name + "/");
// If no unknown data has been added, there is no need to keep this
// in the unknown items list.
if (ukwnDataRoot != null && !root.HasItemData)
{
ukwnDataRoot.ItemData.Remove(root);
}
}
else if (obj is IExtendedDataItem && (value.Name != "ctype" || baseName.Length > 0))
{
// store unreadable raw data to a special property so it can be
// serialized back an the original format is kept
// The ctype attribute don't need to be stored for the root object, since
// it is generated by the serializer
ukwnDataRoot.ItemData.Add(value);
}
continue;
}
if (prop.WriteOnly || !prop.CanDeserialize(serCtx, obj))
{
continue;
}
try
{
if (prop.ExpandedCollection)
{
ICollectionHandler handler = prop.ExpandedCollectionHandler;
if (expandedCollections == null)
{
expandedCollections = new Hashtable();
}
object pos, col;
if (!expandedCollections.ContainsKey(prop))
{
col = handler.CreateCollection(out pos, -1);
}
else
{
pos = expandedCollections [prop];
col = prop.GetValue(obj);
}
handler.AddItem(ref col, ref pos, prop.Deserialize(serCtx, obj, value));
expandedCollections [prop] = pos;
prop.SetValue(obj, col);
}
else
{
if (prop.HasSetter && prop.DataType.CanCreateInstance)
{
prop.SetValue(obj, prop.Deserialize(serCtx, obj, value));
}
else if (prop.DataType.CanReuseInstance)
{
object pval = prop.GetValue(obj);
if (pval == null)
{
if (prop.HasSetter)
{
throw new InvalidOperationException("The property '" + prop.Name + "' is null and a new instance of '" + prop.PropertyType + "' can't be created.");
}
else
{
throw new InvalidOperationException("The property '" + prop.Name + "' is null and it does not have a setter.");
}
}
prop.Deserialize(serCtx, obj, value, pval);
}
else
{
throw new InvalidOperationException("The property does not have a setter.");
}
}
}
catch (Exception ex)
{
throw new InvalidOperationException("Could not set property '" + prop.Name + "' in type '" + Name + "'", ex);
}
}
}
