do we need using for the SqlCommand or is it enough just for the SqlConnection and SqlDataReader

Question

i took this code from msdn

string connString = \"Data Source=localhost;Integrated Security=SSPI;Initial Catalog=Northwind;\";

    using (SqlConnection conn          


        

Answer 1

You don't NEED to use a using statement, but it is good practice and you SHOULD use it. It allows objects using IDisposable to be disposed of automatically.

http://msdn.microsoft.com/en-us/library/yh598w02(VS.80).aspx

Edited to add link and remove inaccurate statement because @John Saunders is right.