Update query not working in table adapter

I have a table adapter on which I want to query an update to my database.

UPDATE Polls
SET DateRequest = ?
WHERE (Id = ?)

But it's not working when I try to execute it

_pollsAdapter.UpdatePollById(id, DateTime.Parse(RequestedDateBox.开发者_如何学CText).ToOADate());

The adapter also has some other queries for selecting or inserting and they all work perfectly fine.

I checked if the id is correct or if any other error in the statement could cause it to not work, but then I would get an exception, wouldn't I?

Also, if I check for the return value, I get 0 - so the query actually edited no rows, but I can't see any reason why. The id is correct, the statement is correctly created within the table adapter, it throws no syntax or whatsoever-errors...

How could I debug this matter more?

Your query shows DateRequest and the ID, so you need to pass the parameters in the same order. You are passing ID first.

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