Extract(string, string)

This method extracts a subset from the XML data represented by the OracleXmlType object using the given XPath expression and a string parameter for namespace resolution.

Declaration

// C#
public OracleXmlType Extract(string xpathExpr, string nsMap);

Parameters

xpathExpr

The XPath expression.
nsMap

The string parameter used for namespace resolution of the XPath expression. nsMap has zero or more namespaces separated by spaces. nsMap can be null. For example:
```
 xmlns:nsi"=http://www.company1.com" xmlns:nsz="http://www.company2.com"
```

Return Value

An OracleXmlType object.

Exceptions

ObjectDisposedException - The object is already disposed.

ArgumentNullException - The xpathExpr is null or zero-length.

InvalidOperationException - The OracleConnection is not open or has been closed during the lifetime of the object.