C# - Sorting items in a listbox...!

Question

0.00/5 (No votes)

See more:

Hi
I have this listbox with data:

ex.

CCCCC
CCCCC
CCCCC
BBBBB
BBBBB
BBBBB
BBBBB
AAAAA
AAAAA

then I am finding how many times are repeat items using this code:

XML

string[] names = listBox1.Items.Cast<string>().ToArray();
            List<string> namecount = (
            names.GroupBy(name => name).Select(group => string.Format("{0} [{1}]", group.Key, group.Count()))
                .ToList());//.ForEach(item => Console.WriteLine(item));
            listBox2.DataSource = namecount;

and and then listbox 2 look like that:
CCCCC[3]
BBBBB[4]
AAAAA[2]

ok now the problem is how can I sort or collect them in another listbox e.x listbox3 like that:

BBBBB[4]
CCCCC[3]
AAAAA[2]

the most word that is repeat to be first.....etc

Posted 8-May-12 0:00am

h7h7h7

Add a Solution

2 solutions

Solution 2

C#

listBox1.Name = "listBox1";
listBox1.Items.AddRange(new object[] {
             "hi",
            "are",
            "hello",
            "how",
            "wher"});
listbox1.sort = true;

Posted 8-May-12 19:36pm

Reegan Durai.m

Updated 8-May-12 19:47pm

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)

BobJanova · Accepted Answer · 2012-05-08T01:34:00

Solution 1

Try ordering them before constructing the string form:

List<string> namecount = (
            names.GroupBy(name => name).OrderBy(g => g.Count()).Select(group => string.Format("{0} [{1}]", group.Key, group.Count()))
                .ToList());

Posted 8-May-12 1:34am

BobJanova

Comments

h7h7h7 8-May-12 8:05am

thnx it work but they are grouping from small value to high value like that:
AAA[1]
BBB[2]
CCC[3]

what should I change in code to group from high value to small value like that:
CCC[3]
BBB[2]
AAA[1]

thankyou so much

h7h7h7 8-May-12 8:21am

it is ok man, I solved it using orderByDescending ....

thnx a lot