CListFieldTypeList::_init

private function _init()
{
	if(count(self::$types) == 0)
	{
		self::$types = array();
		//Element fields
		self::$types["NAME"] = new CListFieldType("NAME", GetMessage("LISTS_LIST_FIELD_NAME"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["SORT"] = new CListFieldType("SORT", GetMessage("LISTS_LIST_FIELD_SORT"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["ACTIVE_FROM"] = new CListFieldType("ACTIVE_FROM", GetMessage("LISTS_LIST_FIELD_ACTIVE_FROM"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["ACTIVE_TO"] = new CListFieldType("ACTIVE_TO", GetMessage("LISTS_LIST_FIELD_ACTIVE_TO"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["PREVIEW_PICTURE"] = new CListFieldType("PREVIEW_PICTURE", GetMessage("LISTS_LIST_FIELD_PREVIEW_PICTURE"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["PREVIEW_TEXT"] = new CListFieldType("PREVIEW_TEXT", GetMessage("LISTS_LIST_FIELD_PREVIEW_TEXT"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["DETAIL_PICTURE"] = new CListFieldType("DETAIL_PICTURE", GetMessage("LISTS_LIST_FIELD_DETAIL_PICTURE"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["DETAIL_TEXT"] = new CListFieldType("DETAIL_TEXT", GetMessage("LISTS_LIST_FIELD_DETAIL_TEXT"), CListFieldType::IS_FIELD, CListFieldType::NOT_READONLY);
		self::$types["DATE_CREATE"] = new CListFieldType("DATE_CREATE", GetMessage("LISTS_LIST_FIELD_DATE_CREATE"), CListFieldType::IS_FIELD, CListFieldType::IS_READONLY);
		self::$types["CREATED_BY"] = new CListFieldType("CREATED_BY", GetMessage("LISTS_LIST_FIELD_CREATED_BY"), CListFieldType::IS_FIELD, CListFieldType::IS_READONLY);
		self::$types["TIMESTAMP_X"] = new CListFieldType("TIMESTAMP_X", GetMessage("LISTS_LIST_FIELD_TIMESTAMP_X"), CListFieldType::IS_FIELD, CListFieldType::IS_READONLY);
		self::$types["MODIFIED_BY"] = new CListFieldType("MODIFIED_BY", GetMessage("LISTS_LIST_FIELD_MODIFIED_BY"), CListFieldType::IS_FIELD, CListFieldType::IS_READONLY);
		//Property types
		self::$types["S"] = new CListFieldType("S", GetMessage("LISTS_LIST_FIELD_S"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		self::$types["N"] = new CListFieldType("N", GetMessage("LISTS_LIST_FIELD_N"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		self::$types["L"] = new CListFieldType("L", GetMessage("LISTS_LIST_FIELD_L"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		self::$types["F"] = new CListFieldType("F", GetMessage("LISTS_LIST_FIELD_F"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		self::$types["G"] = new CListFieldType("G", GetMessage("LISTS_LIST_FIELD_G"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		self::$types["E"] = new CListFieldType("E", GetMessage("LISTS_LIST_FIELD_E"), CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
		//User types
		$types = CIBlockProperty::GetUserType();
		if ($types)
		{
			$ignoreTypes = ['directory', 'SectionAuto', 'SKU', 'EAutocomplete'];
			if (self::isBlockYandexMapType())
			{
				$ignoreTypes[] = 'map_yandex';
			}

			foreach($types as  $ar)
			{
				if(in_array($ar['USER_TYPE'], $ignoreTypes))
					continue;

				if($ar && array_key_exists("GetPublicEditHTML", $ar))
				{
					$typeId = $ar["PROPERTY_TYPE"].":".$ar["USER_TYPE"];
					self::$types[$typeId] = new CListFieldType($typeId, $ar["DESCRIPTION"], CListFieldType::NOT_FIELD, CListFieldType::NOT_READONLY);
				}
			}
		}
	}
}