### XmlContainer::exists |

`

###

    #include <DbXml.hpp>

    bool XmlContainer::exists(DbTxn *txn) const;

### Description: XmlContainer::exists

The XmlContainer::exists method tests if a container exists.

It returns true if the container has already been created, and false if not.

### Parameters

txn
  If the operation is to be transaction-protected, the txn parameter is a transaction handle returned from DbEnv::txn_begin, otherwise, NULL.

### Class

XmlContainer, XmlDocument, XmlException, XmlIndexSpecification, XmlQueryContext, XmlQueryExpression, XmlResults, XmlUpdateContext, XmlValue`

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