Disposing the members that implement IDisposable.

Posted by Amby on Stack Overflow See other posts from Stack Overflow or by Amby
Published on 2010-06-11T12:25:28Z Indexed on 2010/06/11 12:43 UTC
Read the original article Hit count: 261

Filed under:

c#

|

idisposable

|

nullreferenceexception

In my Dispose methods (like the one below), everytime i want to call someObj.Dispose() i also have a check for someObj!=null.

Is that because of bad design on my part? Is their a cleaner way to ascertain that Dispose of all the members (implementing IDisposable) being used in an object is called without having a risk of NullReference exception ?

protected void Dispose(bool disposing)
        {
            if (disposing)
            {
               if (_splitTradePopupManager != null)
                {
                    _splitTradePopupManager.Dispose();
                }
             }
        }

Thanks for your interest.

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about idisposable

Should classes that are passed references to IDisposable objects be IDisposable as well and set them

as seen on Stack Overflow - Search for 'Stack Overflow'
I think the question says it all. Thanks. >>> More
Implementing IDisposable on a subclass when the parent also implements IDisposable

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a parent and child class that both need to implement IDisposable. Where should virtual (and base.Dispose()?) calls come into play? When I just override the Dispose(bool disposing) call, it feels really strange stating that I implement IDisposable without having an explicit Dispose() function… >>> More
Using Unity and interfaces, how do I create a concrete class that implements IDisposable

as seen on Stack Overflow - Search for 'Stack Overflow'
I have an interface (IDbAccess) for a database access class so that I can unit test it using Unity. It all works fine in Unity and now I want to make the concrete database class implement IDisposable so that it closes the db connections. My problem is that Unity does not understand that my concrete… >>> More
How do you reconcile IDisposable and IoC?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm finally wrapping my head around IoC and DI in C#, and am struggling with some of the edges. I'm using the Unity container, but I think this question applies more broadly. Using an IoC container to dispense instances that implement IDisposable freaks me out! How are you supposed to know if… >>> More
When should I implement IDisposable?

as seen on Stack Overflow - Search for 'Stack Overflow'
What is the best practice for when to implement IDisposable? Is the best rule of thumb to implement it if you have one managed object in the class, or does it depend if the object was created in the class or just passed in? Should I also do it for classes with no managed objects at all? >>> More