We have the following environment

..Net Framework 2.0
- Informix Client SDK 2.90 TC6
- Informix 9.40 FC8

The following error started appearing after we upgraded to TC6. It
never happened in TC4/TC5.


System.ArgumentException: The parameter data type of DBNull is
invalid..
at IBM.Data.Informix.TypeMap.FromSystemType(Type dataType, Int32
iLength)
at IBM.Data.Informix.IfxParameter.GetParameterValue()
at IBM.Data.Informix.IfxParameter.Bind(IntPtr stmt, IfxCommand
parent, Int16 ordinal, CNativeBuffer buffer, CNativeBuffer intbuffer)
at IBM.Data.Informix.IfxCommand.ExecuteReaderObject(C ommandBehavior
behavior, String method)
at IBM.Data.Informix.IfxCommand.ExecuteReader(Command Behavior
behavior)
at
IBM.Data.Informix.IfxCommand.System.Data.IDbComman d.ExecuteReader()

Please HELP!?!

IBM has a patch for this bug. You have to call their support and ask
for

The Informix .NET APAR ( bug) for the DBNull problem is IC50773.




Objectguy@gmail.com wrote: