This method indicates whether or not the attribute being retrieved, specified by OracleConnection, pointer, and attribute index, is NULL.
Declaration
// C# public static bool IsDBNull(OracleConnection con, IntPtr pUdt, int attrIndex);
Parameters
con
An OracleConnection instance.
pUdt
An opaque pointer to an Oracle UDT.
attrIndex
The zero-based index of the attribute.
Return Value
True if the specified attribute is NULL; otherwise, false.
Exceptions
ArgumentOutOfRangeException - The specified index is not a valid attribute index
Remarks
This method is invoked from the IOracleCustomType.ToCustomObject method. The con and pUdt parameter is passed from the IOracleCustomType.ToCustomObject method to the OracleUdt.IsDBNull method.