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| using namespace System;
using namespace System::Collections::Generic;
using namespace System::IO;
using namespace System::Runtime::Serialization;
using namespace System::Xml;
using namespace System::Xml::Serialization;
using namespace System::Xml::Schema;
generic <typename TKey, typename TVal>
[Serializable()]
public ref class SerializableDictionary : Dictionary<TKey,TVal>, IXmlSerializable, ISerializable
{
private :
static String^ DictionaryNodeName = "Dictionary";
static String^ ItemNodeName = "Item";
static String^ KeyNodeName = "Key";
static String^ ValueNodeName = "Value";
public:
SerializableDictionary(){}
SerializableDictionary(IDictionary<TKey, TVal>^ dictionary)
: Dictionary<TKey,TVal>(dictionary)
{}
SerializableDictionary(IEqualityComparer<TKey>^ comparer)
: Dictionary<TKey,TVal>(comparer)
{}
SerializableDictionary(int capacity)
: Dictionary<TKey,TVal>(capacity)
{}
SerializableDictionary(IDictionary<TKey, TVal>^ dictionary, IEqualityComparer<TKey>^ comparer)
: Dictionary<TKey,TVal>(dictionary, comparer)
{}
SerializableDictionary(int capacity, IEqualityComparer<TKey>^ comparer)
: Dictionary<TKey,TVal>(capacity, comparer)
{}
protected :
SerializableDictionary(SerializationInfo^ info, StreamingContext* context)
{
int itemCount = info->GetInt32("ItemCount");
for (int i = 0; i < itemCount; i++)
{
KeyValuePair<TKey, TVal>^ kvp = (KeyValuePair<TKey, TVal>^)info->GetValue(String::Format("Item{0}", i), KeyValuePair<TKey, TVal>::typeid );
this->Add(kvp->Key, kvp->Value);
}
}
public :
virtual void GetObjectData(SerializationInfo^ info, StreamingContext context) override = ISerializable::GetObjectData
{
info->AddValue("ItemCount", this->Count);
int itemIdx = 0;
for each (KeyValuePair<TKey, TVal>^ kvp in this)
{
info->AddValue(String::Format("Item{0}", itemIdx), kvp, KeyValuePair<TKey, TVal>::typeid);
itemIdx++;
}
}
virtual void WriteXml(XmlWriter^ writer) = IXmlSerializable::WriteXml
{
//writer.WriteStartElement(DictionaryNodeName);
for each (KeyValuePair<TKey, TVal>^ kvp in this)
{
writer->WriteStartElement(ItemNodeName);
writer->WriteStartElement(KeyNodeName);
KeySerializer->Serialize(writer, kvp->Key);
writer->WriteEndElement();
writer->WriteStartElement(ValueNodeName);
ValueSerializer->Serialize(writer, kvp->Value);
writer->WriteEndElement();
writer->WriteEndElement();
}
//writer.WriteEndElement();
}
virtual void ReadXml(XmlReader^ reader) = IXmlSerializable::ReadXml
{
if (reader->IsEmptyElement)
{
return;
}
// Move past container
if (!reader->Read())
{
throw gcnew XmlException("Error in Deserialization of Dictionary");
}
//reader.ReadStartElement(DictionaryNodeName);
while (reader->NodeType != XmlNodeType::EndElement)
{
reader->ReadStartElement(ItemNodeName);
reader->ReadStartElement(KeyNodeName);
TKey key = (TKey)KeySerializer->Deserialize(reader);
reader->ReadEndElement();
reader->ReadStartElement(ValueNodeName);
TVal value = (TVal)ValueSerializer->Deserialize(reader);
reader->ReadEndElement();
reader->ReadEndElement();
this->Add(key, value);
reader->MoveToContent();
}
//reader.ReadEndElement();
reader->ReadEndElement(); // Read End Element to close Read of containing node
}
virtual XmlSchema^ GetSchema() = IXmlSerializable::GetSchema
{
return nullptr;
}
protected :
property XmlSerializer^ ValueSerializer
{
XmlSerializer^ get()
{
if (valueSerializer == nullptr)
{
valueSerializer = gcnew XmlSerializer(TVal::typeid);
}
return valueSerializer;
}
}
private :
property XmlSerializer^ KeySerializer
{
XmlSerializer^ get()
{
if (keySerializer == nullptr)
{
keySerializer = gcnew XmlSerializer(TKey::typeid);
}
return keySerializer;
}
}
XmlSerializer^ keySerializer;
XmlSerializer^ valueSerializer;
}; |
