Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the standard
HashTable, but the value column is a waste since every key has the same
value, "".
Thanks for your advice.
- Joe Geretz -
14  1368 
Array of strings?
--
HTH,
Kevin Spencer
Microsoft MVP
Printing Components, Email Components,
Networking Components, Controls, much more.
DSI PrintManager, Miradyne Component Libraries: http://www.miradyne.net
"Joseph Geretz" <jg*****@nospam .comwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..
Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the
standard HashTable, but the value column is a waste since every key has
the same value, "".
Thanks for your advice.
- Joe Geretz -
On Mar 22, 4:54 pm, "Joseph Geretz" <jger...@nospam .comwrote:
Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the standard
HashTable, but the value column is a waste since every key has the same
value, "".
So basically you want a set, right? No, there's nothing built into the
framework. Normally people just use HashTable/Dictionary<K,Va nd use
a dummy value.
Jon
On Thu, 22 Mar 2007 12:54:49 -0400, Joseph Geretz wrote:
Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the standard
HashTable, but the value column is a waste since every key has the same
value, "".
Thanks for your advice.
- Joe Geretz -
An array?
--
Bits.Bytes http://bytes.thinkersroom.com
Hi Kevin,
Array of strings?
Will this provide as efficient lookup as the HashTable?
Thanks,
- Joseph Geretz -
"Kevin Spencer" <un**********@n othinks.comwrot e in message
news:O8******** ******@TK2MSFTN GP03.phx.gbl...
Array of strings?
--
HTH,
Kevin Spencer
Microsoft MVP
Printing Components, Email Components,
Networking Components, Controls, much more.
DSI PrintManager, Miradyne Component Libraries:
http://www.miradyne.net
"Joseph Geretz" <jg*****@nospam .comwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..
>Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the
standard HashTable, but the value column is a waste since every key has
the same value, "".
Thanks for your advice.
- Joe Geretz -
It might be a little early, but there will be the HashSet class in Orcas
which will introduce this class. Just something to be aware of in the
future.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Jon Skeet [C# MVP]" <sk***@pobox.co mwrote in message
news:11******** *************@l 77g2000hsb.goog legroups.com...
On Mar 22, 4:54 pm, "Joseph Geretz" <jger...@nospam .comwrote:
>Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the
standard
HashTable, but the value column is a waste since every key has the same
value, "".
So basically you want a set, right? No, there's nothing built into the
framework. Normally people just use HashTable/Dictionary<K,Va nd use
a dummy value.
Jon
Nicholas Paldino [.NET/C# MVP] <mv*@spam.guard .caspershouse.c omwrote:
It might be a little early, but there will be the HashSet class in Orcas
which will introduce this class. Just something to be aware of in the
future.
Hurrah! Only 5 years after it should have been present :)
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
I can't wait. :-)
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
"Nicholas Paldino [.NET/C# MVP]" wrote:
It might be a little early, but there will be the HashSet class in Orcas
which will introduce this class. Just something to be aware of in the
future.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Jon Skeet [C# MVP]" <sk***@pobox.co mwrote in message
news:11******** *************@l 77g2000hsb.goog legroups.com...
On Mar 22, 4:54 pm, "Joseph Geretz" <jger...@nospam .comwrote:
Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the
standard
HashTable, but the value column is a waste since every key has the same
value, "".
So basically you want a set, right? No, there's nothing built into the
framework. Normally people just use HashTable/Dictionary<K,Va nd use
a dummy value.
Jon
Hi Rad,
An array?
Will this provide as efficient lookup as the HashTable?
Thanks,
- Joseph Geretz -
"Rad [Visual C# MVP]" <no****@nospam. comwrote in message
news:4m******** *******@thinker sroom.com...
On Thu, 22 Mar 2007 12:54:49 -0400, Joseph Geretz wrote:
>Basically, I just need an efficient way to store and retrieve keys from a
list. I don't need key/value pairs. I've implemented this with the
standard
HashTable, but the value column is a waste since every key has the same
value, "".
Thanks for your advice.
- Joe Geretz -
An array?
--
Bits.Bytes
http://bytes.thinkersroom.com This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Anders Borum |
last post by:
Hello!
I have a list of singleton classes (model managers) that store objects
internally using hashtables. Each of these classes use a single hashtable to
store e.g. users, pages, elements and so on (I have complete control of the
objects stored). I am currently using a set of abstract cache classes that
my model managers subclass.
The...
|
by: francois |
last post by:
First of all I would to to apologize for resending this post again but I
feel like my last post as been spoiled
Here I go for my problem:
Hi,
I have a webservice that I am using and I would like it to return an XML
serialized version of an object.
|
by: Cyrus |
last post by:
I have a question regarding synchronization across multiple threads for a
Hashtable. Currently I have a Threadpool that is creating worker threads
based on requests to read/write to a hashtable. One function of the
Hashtable is to iterate through its keys, which apparently is inherently not
thread-safe. Other functions of the Hashtable...
|
by: Ken |
last post by:
I have a C# Program where multiple threads will operate on a same Hashtable.
This Hashtable is synchronized by using Hashtable.Synchronized(myHashtable)
method, so no further Lock statements are used before adding, removing or
iterating the Hashtable. The program runs in a high workload environment.
After running a few days, now it suddenly...
|
by: Oberon |
last post by:
My HashTable (Global.Games) is a static collection of objects of type
Game. A Game object has 8 fields (exposed as properties). The key to
the HashTable is also one of these fields (GameID, of type int).
When I try to create a SortedList from the HashTable with the
following:
SortedList sortedGames = new SortedList(Global.Games);
I get...
| | |
by: Alexander Widera |
last post by:
Hi,
I have a problem with this code ... (see below) ... I want to sort an
instance of MyList ... by MyData.Shortname ... Shortname is of the type
string.... how can I sort the entries?
Thank you for your help.
Alex
using System;
|
by: Moondog |
last post by:
I am referencing a datagrid item like this:
strItemNo = grdItems.Item(grdItems.CurrentRowIndex(), 0)
The Item Number is in the first column; column 0. It works fine
except this is not a very good programming practice. What if someday
someone decides to move the "item number" column to the fourth or
fifth position?
|
by: PAzevedo |
last post by:
I have this Hashtable of Hashtables, and I'm accessing this object from
multiple threads, now the Hashtable object is thread safe for reading,
but not for writing, so I lock the object every time I need to write to
it, but now it occurred to me that maybe I could just lock one of the
Hashtables inside without locking the entire object, but...
|
by: hharry |
last post by:
Hello All,
I have a single class windows service that includes a function that
runs in the ThreadPool. The class contains a hashtable which is
declared in the main thread.
What is the recommended method of updating a variable declared in the
main thread from a spawned threadpool thread ?
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it. ...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating...
| |
