Douglas,

>My business object catches the following exception while trying to save data to a database in a asp.net application.
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>"Prepared statement '(@p1 char(16),@p2 int,@p3 datetime,@p4 char(16),@p5 int,@p6 int,' expects parameter @p2, which was not supplied."	string
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>The business object updates some fields in the table right before a second method gets called to update some more fields. If I set the business object to null after the first save and create a new one before calling the second save method it works fine.
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>It looks like the “Prepared statement” is a combination of the two update statements in the different methods.
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>I have not changed the default value of the UpdateSelectStatement field for the biz object.

Are you using a custom data access class? Is this the insert, update or delete statement? You can put a breakpoint in mmDataAccessSql (or whichever data access class you're using) in the CreateInsertCommand(), CreateUpdateCommand() and CreateDeleteCommand() methods to see what's happening.

Regards,