private static Tuple <Type, Type> MatchTypeConverter(Type targetType, ReflectedProperty property, Type fromType, Tuple <Type, Type> typeConverter, bool autoTypeCoercion)
{
if (typeConverter.Item1 == null && autoTypeCoercion)
{
var interfaceType = typeConverter.Item2;
if (interfaceType == null)
{
interfaceType = TypeConverterAttribute.GetExpectedConverterInterfaceType(fromType, property.PropertyType);
}
if (property.PropertyType == typeof(string))
{
return(Tuple.Create(typeof(DBNullableStringConverter), interfaceType));
}
else if (property.IsNullableType)
{
if (property.PropertyType.IsEnum)
{
var propertyType = property.PropertyType.GetEnumUnderlyingType();
return(Tuple.Create(typeof(NullableEnumConverter <>).MakeGenericType(propertyType), interfaceType));
}
else
{
var propertyType = Nullable.GetUnderlyingType(property.PropertyType);
return(Tuple.Create(typeof(DBNullableTypeConverter <>).MakeGenericType(propertyType), interfaceType));
}
}
else if (property.IsSimpleType && property.PropertyType.IsEnum)
{
return(Tuple.Create(typeof(EnumConverter <>).MakeGenericType(property.PropertyType), interfaceType));
}
else if (property.PropertyType == typeof(byte[]))
{
return(Tuple.Create(typeof(DBNullableByteArrayConverter).MakeGenericType(property.PropertyType), interfaceType));
}
}
return(typeConverter);
}