Hello!

Recenty I posted post about update problem:
I use DataEnvironment and I have an command that updates db records with specified values (about 15 of them).
Code:
DataEnvironment1.Command1 Param1, Param2, Param3, Param4...
When I first ran it, it worked well, but when I tried to ru it for second time, error occured ("Data type mismatch in criteria expression.").
Then I posted a question here and nobody replied.
Today I was adding some records to database and the same thing occured. When I added the first record, it worked OK, but when I tried to add another one, an error occured. I closed my program (in IDE) and rerun it. Again first update and add was OK, for another add and update an error occured.

Any suggestions?