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.