/**
  * Get a data container
  * @param string $strName
  *
  * @return DataContainer
  *
  * @throws \RuntimeException
  */
 public static function getDataContainer($strName)
 {
     BackendBindings::loadDataContainer($strName);
     BackendBindings::loadLanguageFile($strName);
     if (!isset($GLOBALS['TL_DCA'][$strName])) {
         throw new \RuntimeException("DataContainer {$strName} does not exist.");
     }
     return DataContainer::getInstance($strName);
 }