(C#) iterate over read-only private collection member

Posted by DGH on Stack Overflow See other posts from Stack Overflow or by DGH
Published on 2010-04-05T19:46:38Z Indexed on 2010/04/05 19:53 UTC
Read the original article Hit count: 524

Filed under:

c#

|

hashset

|

private-members

|

iteration

I have a class which has two HashSet collections as private members. Other classes in my code would like to be able to iterate over those HashSets and read their contents. I don't want to write a standard getter because another class could still do something like myClass.getHashSet().Clear(); Is there any other way to expose the elements of my HashSets to iteration without exposing the reference to the HashSet itself? I'd love to be able to do this in a way that is compatible with for-each loops.

© 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
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
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
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 hashset

'Set = new HashSet' or 'HashSet = new Hashset'?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm intialising a HashSet like so in my program: Set<String> namesFilter = new HashSet<String>(); Is this functionally any different if I initilise like so? HashSet<String> namesFilter = new HashSet<String>(); I've read this about the collections interface, and I understand… >>> More
C# HashSet<T>

as seen on Johnny Coder - Search for 'Johnny Coder'
I hadn’t done much (read: anything) with the C# generic HashSet until I recently needed to produce a distinct collection. As it turns out, HashSet<T> was the perfect tool. As the following snippet demonstrates, this collection type offers a lot: // Using HashSet<T>: // http://www… >>> More
Java HashSet key/value pair

as seen on Stack Overflow - Search for 'Stack Overflow'
Why does Java not provide functions to get at the key/value pairs in a HashSet like in Hashtable? It seems like a real pain to have to iterate over it every time you need to get at something. Or am I just a newb missing something? >>> More
Java HashSet<Integer> to int array

as seen on Stack Overflow - Search for 'Stack Overflow'
I've got a HashSet with a bunch of (you guessed it) integers in it. I want to turn it into an array, but calling hashset.toArray(); returns an array of Object type. This is fine, but is there a better way to cast it to an array of int, other than iterating through every element manually? A method… >>> More
C#/.NET Little Wonders: The Useful But Overlooked Sets

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Once again we consider some of the lesser known classes and keywords of C#. Today we will be looking at two set implementations in the System.Collections.Generic namespace: HashSet<T> and SortedSet<T>. Even though most people think of sets as mathematical constructs, they are actually… >>> More