Re: Sybase Bulk Copy via .net DLL: Value does not fall within the expected range

> I have tried not using IDataReader; instead moving the data to a DataTable then calling WriteToServer with the DataTable.

I suspect the issue is with the mapping code - we've found some issues with this.

Try removing the mappings and change your SQL select from

  SqlCommand cmd = new SqlCommand("select * from TO_INTS", conn);

to (or similar)

  SqlCommand cmd = new SqlCommand("select TO_INT from TO_INTS", conn);

That way your DataTable should match the table you're bcp-ing into.

This "Received a row of length 11 whilst maximum or expected row length is 6."

certainly implies that too much data is being send.

I think there's a way to log the TDS packets being sent. Its not easy to decipher but not impossible. Freetds has some of the specification. I'll have a look into this.