Question

I have like 12,000 rows in a DataTable and it is timing out when trying to WriteToServer. Is there a way I can write just a portion of the DataTable at a time to the database rather than all at once? I have a bad internet connection to my database at the moment. If I can just write 500 rows at a time, I can avoid the timeout. Is there a way to do this?

Answer 1

You should take a look at SqlBulkCopy.BatchSize

A batch is complete when BatchSize rows have been processed or there
are no more rows to send to the destination data source.

Zero (the default) indicates that each WriteToServer operation is a
single batch.

If the SqlBulkCopy instance has been declared without the
UseInternalTransaction option in effect, rows are sent to the server
BatchSize rows at a time, but no transaction-related action is taken.
If UseInternalTransaction is in effect, each batch of rows is inserted
as a separate transaction.

The BatchSize property can be set at any time. If a bulk copy is
already in progress, the current batch is sized according to the
previous batch size. Subsequent batches use the new size. If the
BatchSize is initially zero and changed while a WriteToServer
operation is already in progress, that operation loads the data as a
single batch. Any subsequent WriteToServer operations on the same
SqlBulkCopy instance use the new BatchSize.

Reference here