import csv file/excel into sql database asp.net

Question

I am starting a project with asp.net visual studio 2008 / SQL 2000 (2005 in future) using c#.

The tricky part for me is that the existing DB schema changes often and

Answer 1

I am using csvReader from LumenWorks.Framework for uploading and importing the csv files into a sql table and a DataTable in memory which I create based on the columns imported.

I also have the user map the fields in the ui and proceed to validate and prepare the data for import by labeling each record as insert/update/error. I then create/populate strongly typed DataSet for each table that will be affected and build the insert/update queries for Enterprise Library UpdateDataset() method.

Then I submit the transaction to insert/update the database. –

The mapping is a grid with 4 columns. ( import field name, destination table, destination field name, ignore, match status), with destination table and field names being selects which refresh based on table selected. I dynamically populate the selects. Initially select combo is populated with 1 value if the match is found, or please select if it isn't. ignore allows user to ignore the field. match status is if a field was auto-mapped