Sorting problem in c#....!

Question

2.50/5 (2 votes)

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I want to sort data,
I call the file from a path in my PC
Ex.

C#

String[] data=file.readalllines(textbox.text);

the file has those data.
Cristiano Ronaldo
LIonel Messii
-------------------
Karim Benzema
Rikardo Kak
------------------
Van Persi
mario gomes
------------------
Now, when I click button the data I want to be sorted without lines "--------" or spaces " " ......
I am using

C#

data=data.replace("---------" , " " );

but it doesn't work...

Posted 19-Apr-12 22:33pm

h7h7h7

Updated 19-Apr-12 22:36pm

member60

v2

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Comments

h7h7h7 20-Apr-12 4:43am

p.s

So when I click the button the sorted should be"
Cristiano Ronaldo
Karim Benzema
Lionel Messi
Mario Gomes
Rikardo Kaka
Van Persi

I am using array.sort(data) ... but it doesnt work if I want to remove "------" as I mention in first comment

4 solutions

Solution 1

You can use Trim Function[^] to remove such spaces.

Check this one also: Trim Examples[^]

Posted 19-Apr-12 22:40pm

Prasad_Kulkarni

Comments

h7h7h7 20-Apr-12 5:44am

Yes, I know about trim function, but string[] data.... (array) doesn't support
trim, replace, or remove....!??
is there other opportunity ?

Solution 3

My solution is like that

C#

string[] dataFromFile = listBox2.Items.Cast<string>().ToArray();

            Array.Sort(dataFromFile);
            listBox1.DataSource = dataFromFile;

but I don't know to implement code to remove that string "---------".

andy gave me a good solution, but in this code I can't implement

Posted 20-Apr-12 0:50am

h7h7h7

Updated 20-Apr-12 0:52am

v2

Solution 4

I am using that, and there are again no error....

string [] lst = listBox1.Items.Cast<string>().ToArray();

var sortedList = lst.OrderBy(s => s).
Where(s => !(s.Contains("----") || s.Contains(" ")));

listBox2.DataSource = sortedList.ToList();

but when I click button thera are no data sorted ??

Posted 20-Apr-12 8:04am

h7h7h7

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Andy411 · Accepted Answer · 2012-04-19T23:46:00

Solution 2

You can try using LINQ/Lambda Expressions like this:

C#

string [] player = { "Zidane","Gomez", "Messi", "----", "Ballack", " " };

var sortedList = player.OrderBy(s => s).
                        Where(s => !(s.Contains("----") || s.Contains(" ")));

Will result in

Ballack
Gomez
Messi
Zidane

BTW It's Mario Gomez not Gomes ;-)

If the strings ar Items in a ListBox, then try

C#

listBox.Sorted = true;
listBox.Items.Remove("----");
listBox.Items.Remove(" ");

OK, last try:

I assume you have a WinForm app. I dont' know, why my listBox.Sorted = true; solution did not work. I wrote a little test app and it does well.

C#

string [] lst = listBox1.Items.Cast<string>().ToArray();

var sortedList = lst.OrderBy(s => s).
                     Where(s => !(s.Contains("----") || s.Contains(" ")));


listBox2.DataSource = sortedList.ToList();

Posted 19-Apr-12 23:46pm

Andy411

Updated 20-Apr-12 2:09am

v3

Comments

h7h7h7 20-Apr-12 6:22am

haha yes it is Gomoz..
Andy, my data are in listbox, I don need to create new list...
I tried
var sortedlist=listbox.item.OrderBy(s => s).
Where(s => !(s.Contains("----") || s.Contains(" ")));

but listbox.item.( here orderby is unkonwn, what should I do )..

Andy411 20-Apr-12 7:10am

Try:
listBox.Sorted = true;
listBox.Items.Remove("----");
listBox.Items.Remove(" ");

h7h7h7 20-Apr-12 7:23am

It's the same again.... :(

Andy411 20-Apr-12 8:03am

I made a little WinForm app and it works fine...

VJ Reddy 20-Apr-12 11:14am

Good answer. +5

Andy411 21-Apr-12 14:15pm

thx

h7h7h7 20-Apr-12 12:56pm

hmmmm in fat that code works, but when I clik button Sort...there is nothing
sorted....there are no data ?