Calling Dispose() vs when an object goes out scope/method finishes
c#, idisposable, using, using-statement
Solution
No, objects are not automatically disposed when they go out of scope.
They're not even guaranteed to be disposed if/when they're garbage-collected, although many `IDisposable` objects implement a "fallback" finaliser to help ensure that they're eventually disposed.
You are resposible for ensuring that any `IDisposable` objects are disposed, preferably by wrapping them in a `using` block.
Problem
I have a method, which has a `try/catch/finaly` block inside. Within the try block, I declare `SqlDataReader` as follows: ``` SqlDataReader aReader = null; aReader = aCommand.ExecuteReader(); ``` In the `finally` block, the objects which are manually disposed of are those which are set at the class level. So objects in the method which implement `IDisposable`, such as `SqlDataReader` above, do they get automatically disposed of? `Close()` is called on `aReader` after a while loop executes to get the contents of the reader (which should be `Dispose()` as that calls `Close()`). If there is no call to `Close()`, would this object be closed/disposed of automatically when the method finishes or the object goes out of scope? EDIT: I am aware of the `using` statement but there are scenarios which are confusing me.