IsExists checks for the existence of a particular set of nodes identified by the XPath expression in the XML data.

Overload List:

• IsExists(string, string)

  This method checks for the existence of a particular set of nodes identified by the XPath expression in the XML data represented by the current OracleXmlType instance using a string parameter for namespace resolution.

• IsExists(string, XmlNameSpaceManager)

  This method checks for the existence of a particular set of nodes identified by the XPath expression in the XML document represented by the current OracleXmlType instance using a .NET XmlNameSpaceManager object for namespace resolution.