ado.net Closing Connection when using “using” statement

Question

I am doing my database access methods to SQL Server like this

  using (SqlConnection con = new SqlConnection(//connection string)
  {
    using (SqlCommand c         


        

Answer 1

Yes your code will close the connection, however that typcally means release back to the connection pool to be truely closed later.

If you execute this snippet of code, and then do an sp_who and observe that your connection is still there, that would be why.

If you absolutely need the connection truely closed (an edge case to be sure) then use the ClearAllPools static method of ths SqlConnection