问题:

I was asked by interviewer that what are new features of ADO.NET 2.0?

I replied (A) SQLConnection (B) SQL Command (C) Data Adapter, dataset & data reader.

But he said, those features were already there in ADO.NET 1.1

let me know if any inputs.

Thanks!

回答1:

see here: http://msdn.microsoft.com/en-us/library/ex6y04yf(VS.80).aspx The person was probably looking for Disconnected Classes

回答2:

MSDN says these are the new features.

回答3:

Well, "he" as in "he said" is right, but MS sure made them work better, faster, and with less coding effort in v2.0.

For one thing, DataReader could be loaded directly into a DataSet or DataTable, which simplified things a lot. To me the other biggies were the addition of asynchronous BeginExecuteXxxx() & EndExecuteXxxx() calls along with allowing more than one pending request on a connection, and direct support for reading data in a paged manner without having to write a stored procedure for each place you had a large data set that needed to be paged.