C# how to sort a dictionary in descending order

Question

0.00/5 (No votes)

See more:

C#

C#4.0

I want a sorted dictionary in descending order. How can I do this?

Posted 11-Nov-13 0:29am

Pushkar Prabhu

Updated 13-Dec-17 23:39pm

CPallini

v2

Add a Solution

4 solutions

Solution 4

Dictionary<string, string> dict = new Dictionary<string, string>();

dict.Add("Mango", "1");
dict.Add("Cat", "5");
dict.Add("Rat", "4");
dict.Add("Hare", "2");
dict.Add("Apple", "2");

dict = dict.OrderByDescending(u => u.Value).ToDictionary(z => z.Key, y => y.Value);
//OR
dict = dict.OrderByDescending(keySelector:u => u.Value).ToDictionary(keySelector:z => z.Key, elementSelector:y => y.Value);

Posted 13-Dec-17 23:39pm

Mantu R

Comments

Deepu S Nair 14-Dec-17 5:45am

You are answering a question which is nearly 5 years old and already solved .It may attract downvoting your answer.Please try to answer new questions

Solution 3

In this post on CP I demonstrate sorting a Generic Dictionary by both Keys, and Values, in both ascending, and descending, orders, and there's good discussion of issues in sorting Dictionaries: [^].

Posted 11-Nov-13 2:06am

BillWoodruff

Updated 11-Nov-13 2:09am

v2

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

agent_kruger · Accepted Answer · 2013-11-11T01:07:00

Solution 2

store it in var type variable and write :-

var.Sort();

Posted 11-Nov-13 1:07am

agent_kruger

Comments

BillWoodruff 11-Nov-13 8:09am

A .NET Generic Dictionary does not have a 'Sort method. You can use the Linq 'OrderBy operator: see my post here for a link to an example of using 'OrderBy.

**Orcun Iyigun** · Accepted Answer · 2013-11-11T00:32:00

Solution 1

Please refer to the following links:
C# Sort Dictionary[^]
Sorting a Dictionary in place with respect to keys[^]
How do you sort a dictionary by value?[^]

Good luck,
OI

Posted 11-Nov-13 0:32am

Orcun Iyigun

Comments

Pushkar Prabhu 25-Nov-13 23:38pm

thanks..:)