Bulk Insert SQL Server in C#

I am searching for an efficient way to do
bulk inserts via C#. It seems there are three
ways of doing that:

1.) Copy values to file and call BCP or BULK INSERT in TSQL
2.) Call the IRowFastLoad Interface of the SQL OLEDB Provider
3.) bcp interface of the ODBC driver

I think 2.) and 3.) are the only viable solutions and I wanted
to ask if anybody out there has already experiences
with these interfaces and the way of invocating them in C#.

Thank you for your help.

Bernhard
------------------
Solution Architect
Management Factory
Vienna/AUSTRIA/EUROPE
http://www.mf.ag
Bernhard.Walter@.mf.agYou may want to look at using SQL-DMO with C#. I've not coded in C# however I have used SQL-DMO with VB, VBScript (in an ASP page) and Perl.|||Thanks for the help.

Using SQL-DMO seems to be quite the same than inserting into a
file and then calling BCP, right ?
What I am looking for is a more efficient approach (memory to
SQL Server), because my routine has to work for 1 record to
millions of records in a fast way.

Bernhard