// Allow rows to get updated in batches when using disconnected data access
int batchSize = 5; // 5 rows to get updated in a batch
sqlDataAdapter1.UpdateBatchSize = batchSize;
DataSet1 ds = (DataSet1)dataSet11.GetChanges();
while (ds.HasChanges() == true)
{
    sqlDataAdapter1.Update(ds);
    ds.AcceptChanges();
} 
sqlDataAdapter1.Fill(dataSet11);
MessageBox.Show("Batch update completed!");