Using array binding to perform multiple rowupdates in one pass

For the first time I am attempting to use array binding in VB.NET to update multiple rows via a single execution of a stored procedure. My subroutine is:
Friend Sub UpdateSolutionStatusUsingArrays(ByVal intNumBeingUpdated As Integer, ByVal arrScenarioID() As Integer, ByVal arrSolutionID() As Integer, ByVal arrInOrOut() As Integer, ByVal arrTimePeriod() As Integer)
Try
'Set up the Command object
Dim cmdUpdateSolutionStatus As OracleCommand
cmdUpdateSolutionStatus = New OracleCommand
cmdUpdateSolutionStatus.CommandType = CommandType.StoredProcedure
cmdUpdateSolutionStatus.CommandText = "ProcUpdateSolutionStatus"
cmdUpdateSolutionStatus.Connection = cnnORACLE
cmdUpdateSolutionStatus.ArrayBindCount = intNumBeingUpdated - 1
cmdUpdateSolutionStatus.CommandTimeout = CInt(tblOptions.Rows(intDatabaseIndex).Item("ConnectionTimeout"))
'Add ScenarioID array as parameter
Dim p_ScenarioID As New OracleParameter("ScenarioID", OracleDbType.Int32)
p_ScenarioID.Direction = ParameterDirection.Input
p_ScenarioID.Value = arrScenarioID
cmdUpdateSolutionStatus.Parameters.Add(p_ScenarioID)
'Add SolutionID array as parameter
Dim p_SolutionID As New OracleParameter("SolutionID", OracleDbType.Int32)
p_SolutionID.Direction = ParameterDirection.Input
p_SolutionID.Value = arrSolutionID
cmdUpdateSolutionStatus.Parameters.Add(p_SolutionID)
'Add InOrOut array as parameter
Dim p_InOrOut As New OracleParameter("InOrOut", OracleDbType.Int32)
p_InOrOut.Direction = ParameterDirection.Input
p_InOrOut.Value = arrInOrOut
cmdUpdateSolutionStatus.Parameters.Add(p_InOrOut)
'Add TimePeriod array as parameter
Dim p_TimePeriod As New OracleParameter("TimePeriod", OracleDbType.Int32)
p_TimePeriod.Direction = ParameterDirection.Input
p_TimePeriod.Value = arrTimePeriod
cmdUpdateSolutionStatus.Parameters.Add(p_TimePeriod)
'Open connection
cnnORACLE.Open()
'Run stored procedure
cmdUpdateSolutionStatus.ExecuteNonQuery()
'Tidy up
cmdUpdateSolutionStatus = Nothing
cnnORACLE.Close()
Catch ex As Exception
WriteLog("Subroutine UpdateSolutionStatusUsingArrays:" & ex.Message.ToString)
strState = "Error"
'Update Run Status to show error has occurred
cnnORACLE.Close()
UpdateRunStatusORACLE(7)
End Try
End Sub
When the routine tries to run cmdUpdateSolutionStatus.ExecuteNonQuery() I get the error message:
Unable to cast object of type 'System.Int32[]' to type 'System.IConvertible'.
I have tried all sorts of variants of the code but with no success. The arrays are being set up correctly. Anyoneone know what I'm missing?
Stewart

Try declaring the arrays as OracleNumber datatype instead of Integer. I've had this issue before, and I believe this is what I did to solve the problem.

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Message was edited by:
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Message was edited by:
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