data type mapping error

[VBM]

I am writing generic database coponent which will connect to sybase, SQL
Server , oracle etc ...I am using IDBDataParameter , my store proc requires
integer paramter

say

IDbDataParameter parameterTabOrder =
myGenComponent.CreateDataParameter("@PageOrder", System.Data.DbType.UInt16,
4);
parameterTabOrder.Direction = ParameterDirection.Output;
myCommand.Parameters.Add(parameterTabOrder);

IDataReader result = myCommand.ExecuteReader();

For SQL Server when this is run it gives me error as "No mapping exists
from DbType UInt16 to a known SqlDbType."
The same code works good for Sybase. I tried Int16, Int32, that also
fails....I want something generic which will fit for different databases....

any clues