I'm still relatively new to C# and have only within the past several days been exposed to "IDisposables". I can grasp the concept of the using block to take care of objects which must be disposed of without needing to manually remember to call the .Dispose() method - convenient!

Let's say though that I start with a new SqlConnection which I handle within a using statement. Within that block of code I create some additional IDisposables, for example a SqlDataAdapter. Does that adapter need it's own using statement?

For example, if I have code...

using (SqlConnection myConnection = new SqlConnection())

{

    SqlCommand myCommand = new SqlCommand();

    SqlDataAdapter myAdapter = new SqlDataAdapter();

    // Do things

}

... will myCommand and myAdapter be disposed of when myConnection is disposed of (since they are within the scope of that code block)? Or do I need multiple using statements, maybe something like:

using (SqlConnection myConnection = new SqlConnection())

{

    using (SqlCommand myCommand = new SqlCommand())

    {

        using (SqlDataAdapter myAdapter = new SqlDataAdapter())

        {

            // Do things

        }

    }

}