Calling Dispose() vs when an object goes out scope/method finishes

Question

I have a method, which has a try/catch/finaly block inside. Within the try block, I declare SqlDataReader as follows:

SqlDataReader         


        

Answer 1

The Dispose pattern doesn't make any guarantees about which objects will call Dispose on which other objects; it may happen sometimes, but you shouldn't care. Instead, it's your responsibility to make sure Dispose() is called for all IDisposable objects. The best way to do that is with the using statement. For example:

using (SqlDataReader aReader = aCommand.ExecuteReader())
{
    // your code
}