public function getIsNumeric()
	{
		switch ( $this->TypeCode )
		{
			case XmlTypeCode::Decimal:
			case XmlTypeCode::Float:
			case XmlTypeCode::Double:
			case XmlTypeCode::Integer:
			case XmlTypeCode::NonPositiveInteger:
			case XmlTypeCode::NegativeInteger:
			case XmlTypeCode::Long:
			case XmlTypeCode::Int:
			case XmlTypeCode::Short:
			case XmlTypeCode::Byte:
			case XmlTypeCode::NonNegativeInteger:
			case XmlTypeCode::UnsignedLong:
			case XmlTypeCode::UnsignedInt:
			case XmlTypeCode::UnsignedShort:
			case XmlTypeCode::UnsignedByte:
			case XmlTypeCode::PositiveInteger:
				return true;
		}
		return false;
	}