How to make an IDisposable object a class variable?

Posted by Ben Aston on Stack Overflow See other posts from Stack Overflow or by Ben Aston
Published on 2010-03-14T00:44:00Z Indexed on 2010/03/14 0:45 UTC
Read the original article Hit count: 552

Filed under:

idisposable

|

class-variables

|

active-directory

|

c#

I am working with Active Directory using C#. Instantiating the PrincipalContext object seems to be expensive, so I'd like to store one in a class variable.

When using PrincipalContext as a local variable, I can use the convenient using syntax. When storing an IDisposable object in a static variable, how do I ensure the object is properly disposed of?

© Stack Overflow or respective owner

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

Related posts about class-variables

Proper way to set class variables

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm writing a class to insert users into a database, and before I get too far in, I just want to make sure that my OO approach is clean: class User(object): def setName(self,name): #Do sanity checks on name self._name = name def setPassword(self,password): #Check… >>> More
Clear all class variables between instances

as seen on Stack Overflow - Search for 'Stack Overflow'
This is probably a stupid question, but what's the best way to clear class variables between instances? I know I could reset each variable individually in the constructor; but is there a way to do this in bulk? Or am I doing something totally wrong that requires a different approach? Thanks… >>> More
AJAX Callback and Javascript class variables assignments

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to build a little javascript class for geocoding addresses trough Google Maps API. I am learning Javascript and AJAX and I still can't figure out how can I initialize class variables trough a callback: // Here is the Location class, it takes an address and // initialize a GClientGeocoder… >>> More
Python class variables not defined with called from outside module

as seen on Stack Overflow - Search for 'Stack Overflow'
I am having some issues with calling a function outside of a module. The scenario is I have a small class library that is using turtle to do some drawing, the function within the module calls the classes also within the module and draws things, etc. This all works fine and dandy when I call the function… >>> More
Accessing Class Variables from a List in a nice way in Python

as seen on Stack Overflow - Search for 'Stack Overflow'
Suppose I have a list X = [a, b, c] where a, b, c are instances of the same class C. Now, all these instances a,b,c, have a variable called v, a.v, b.v, c.v ... I simply want a list Y = [a.v, b.v, c.v] Is there a nice command to do this? The best way I can think of is: Y = [] for i in X … >>> More