Error on Passing parameter to stored procedure

Hi,

I have a procedure that will save to table in sql server 200 via stored procedure. When I hit the save button it alwasy give me an error saying "Procedure 'sp_AddBoard' expects parameter '@.dtmWarrantyStart', which was not supplied" even though I supplied it in the code

which is

Dim ParamdtmWarrantyStart As SqlParameter = New SqlParameter("@.dtmWarrantyStart", SqlDbType.datetime, 8)
ParamdtmWarrantyStart.Value = dtmWarrantyStart
myCommand.Parameters.Add(ParamdtmWarrantyStart)

below is the stored procedure.

create Proc sp_AddBoard(@.BrandID int,
@.strPcName varchar(50),
@.bitAccounted bit,
@.dtmAccounted datetime,
@.dtmWarrantyStart datetime,
@.dtmWarrantyEnd datetime,
-- @.strDescription varchar(500),
@.intStatus int,
@.ModelNo varchar(50),
@.intMemorySlots int,
@.intMemSlotTaken int,
@.intAgpSlots int,
@.intPCI int,
@.bitWSound bit,
@.bitWLan bit,
@.bitWVideo bit,
@.dtmAcquired datetime,
@.stat bit output,
@.intFSB int) as
if not exists(select strPcName from tblBoards where strPcName=@.strPcName)
begin
insert into tblBoards
(BrandID, strPcName, bitAccounted,
dtmAccounted, dtmWarrantyStart,
dtmWarrantyEnd, --strDescription,
intStatus,
ModelNo, intMemorySlots, intMemSlotTaken,
intAgpSlots, intPCI, bitWLan,
bitWVideo, dtmAcquired,intFSB,bitWSound)

values

(@.BrandID,@.strPcName,@.bitAccounted,
@.dtmAccounted,@.dtmWarrantyStart,
@.dtmWarrantyEnd,--@.strDescription,
@.intStatus,
@.ModelNo,@.intMemorySlots,@.intMemSlotTaken,
@.intAgpSlots,@.intPCI,@.bitWLan,
@.bitWVideo,@.dtmAcquired,@.intFSB,@.bitWSound)
end
else
begin
set @.stat=1
end

The table is also designed to accept nulls on that field but still same error occured.

Please helpjust check if there is any value in the parameter value. the way i normally do is :

myCommand.Parameters.Add(New SqlParameter("@.cusbday",SqlDbType.datetime))
If len(trim(bday.Text)) = 0 Then
myCommand.Parameters("@.cusbday").Value = SqlDateTime.null
Else
myCommand.Parameters("@.cusbday").Value = DateTime.Parse(bday.Text)
End If

also you need to import the namespace System.Data.SqlTypes to use sqldatetime.null

<%@. import Namespace="System.Data.SqlTypes" %>

hthsql