Comments on: Dictionaries in C#: The Hashtable http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/ Making Microsoft .Net Development Magical Thu, 17 May 2012 06:40:43 +0000 hourly 1 http://wordpress.com/ By: Michael Blackburn http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-29614 Wed, 13 Jul 2011 00:06:40 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-29614 You want an OrderedDictionary() for that.
http://msdn.microsoft.com/en-us/library/system.collections.specialized.ordereddictionary.aspx

]]> By: Michael Blackburn http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-29613 Tue, 12 Jul 2011 23:57:59 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-29613 Vanit, a hashtable requires that each key be unique. Once you add a key to a hashtable, you cannot add it again. You CAN update the value, as you see in his first code example, he changes the value at the key ArcaneCode to “Here I’ve changed the value.”
You can do this:
hash.Add(“myKey”,1);
hash["myKey"] = 2;

But you can’t do this:
hash.Add(“myKey”,1);
hash.Add(“myKey”,2);

]]> By: vanit http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-27741 Wed, 05 May 2010 13:52:00 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-27741 Hello
When i am using the Hashtable them i am getting this error.

Error Description: Item has already been added. Key in dictionary: ‘ProjectList’ Key being added: ‘ProjectList’

can you please tell me where i am wrong ?

Thanks
Vanit

]]> By: Andy http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26867 Tue, 14 Jul 2009 04:13:16 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26867 usign System.Collections;

]]> By: Cees http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26427 Thu, 12 Feb 2009 17:24:47 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26427 using ?

]]> By: Feitz http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26425 Thu, 12 Feb 2009 11:16:17 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-26425 Thanks for the help tips in your website. just the information i need! =)

]]> By: gayathri http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-25281 Sat, 17 May 2008 06:42:37 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-25281 Hi, i have a problem. The data that i get using the hastable is gettin lost when i try to bind it to the combo box. Plss help me solve the issue.

]]> By: Arif http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-24989 Mon, 21 Apr 2008 03:25:04 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-24989 I want to fetch the Hashtable items in the same sequence in which I added in it using foreach loop with the help of DictionaryEntry. How it can be done.

]]> By: zar http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-23061 Fri, 04 Jan 2008 10:34:27 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-23061 hi,
I need dictionary code , with c# and sql server 2000.
please help me.

]]> By: arcanecode http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-4223 Mon, 07 May 2007 12:01:42 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-4223 From what I have been able to determine David, the best answer I can find is “it depends”.

I know, it seems like it’s always the answer, but in part it’s tied to your machine’s hardware. Amount of RAM, CPU speed, single vs. dual core, etc.

The best advice I can give is to do some trial tests at what you expect the upper bounds of your hashtable to be with realistic data in it, and see what happens.

Arcane

]]> By: David http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-4141 Sat, 05 May 2007 22:30:35 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-4141 What are the size limits both in terms of key-length and in terms of # entries before it bogs down on add/retrieve?

]]> By: Joanna Watts http://arcanecode.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-1400 Fri, 09 Mar 2007 04:47:42 +0000 http://arcanecode.wordpress.com/2007/03/05/dictionaries-in-c-the-hashtable/#comment-1400 Hi, your homepage looks really good and gives great information! Anyway, nice job. Keep it up please!!! My best wishes to you all!

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