Problem with condition c#

Question

1.67/5 (3 votes)

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There are 2 listboxes......listbox1 and listbox2

listbox1.datasource=datafile "datafile is file with items"

listebox1 has those items:

BBBBBB
------
CCCCC
------
AAAAAA
------

and listbox2 is empty.

now I want those data from listbox1 to be sorted i listbox2 but without string "----"
I have code for sorting them, but I dont know how to write code "sort them but don't take string "-----------" so sort them like that:
AAAAAA
BBBBBB
CCCCCC

always think that there is listbox1.datasource not listbox1.item

Thankyou !

Edit: Additional message of the OP moved here from solution
my solution is that, bur stil dooesnt work

C#

 string[] dataFromFile = lstQiftet.Items.Cast().ToArray();

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

 ArrayList arr = new ArrayList();
  
 foreach (string s in dataFromFile)
 if (s != "-----------------")
arr.Add(s);

 arr.Sort(); 
listBox2.DataSource = arr;

why doesn't work

[Edit]Moved from non-solution of OP
THnx Thnx that work, but now after I delete "-----" , in first line is a space, I Try to delet that space like your code it isn't working.....

if (!s.StartsWith("-")&&!s.StartWith(" " ))..... is here any mistake or should be another code
[/Edit]

[Edit] Another non solution
thnx man friend I think I didnt explain as well you as I should

AAAA
----
BBBB
----
CCCC
----

afer i delet '-', then after sorted :

1
2. AAAA
3. BBBB
4. CCCC

the first line than is space.......so I dont want to be that space
[/Edit]

Posted 21-Apr-12 1:01am

h7h7h7

Updated 22-Apr-12 4:13am

Wes Aday

v4

Add a Solution

Comments

Sandeep Mewara 21-Apr-12 7:57am

What have you tried so far? Where are you stuck?

h7h7h7 21-Apr-12 17:50pm

I am stuck, there that I am using a lot of codes and I cant remove this string "------"..... look codes above ore below maybe you can help me

4 solutions

Solution 1

Get all the Items of listbox1 and from this collection remove all the unwanted strings and then apply your sort alogrithm.

Posted 21-Apr-12 1:09am

Lakamraju Raghuram

Comments

h7h7h7 21-Apr-12 7:13am

hmmm do you minde to give a small example pls

Solution 2

ok.. Just try this... All in one..

Code for reading data from file..

OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.ShowDialog();
string[] dataFromFile = System.IO.File.ReadAllLines(openFileDialog.FileName);
Array.Sort(dataFromFile);
listBox1.DataSource = dataFromFile;

Code for removing "----" and to add that in Array List

ArrayList arr = new ArrayList();

foreach (string s in dataFromFile)
  if (s != "-----")
    arr.Add(s);

Code for sorting

arr.Sort();

Your final output in listBox2

listBox2.DataSource = arr;

Posted 21-Apr-12 2:04am

Prasad CM

Comments

Lakamraju Raghuram 21-Apr-12 9:04am

Good.

h7h7h7 21-Apr-12 12:43pm

string[] dataFromFile = lstQiftet.Items.Cast().ToArray();

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

ArrayList arr = new ArrayList();

foreach (string s in dataFromFile)
if (s != "-----------------")
arr.Add(s);

arr.Sort();
listBox2.DataSource = arr;

why doesn't wor

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Manfred Rudolf Bihy · Accepted Answer · 2012-04-22T00:02:00

Solution 6

The conditions can't be both true at the same time so you should use "or" instead of "and". This translates into || instead of &&.

C#

if (!s.StartsWith("-") || !s.StartsWith(" " ))
...

Regards,

Manfred

Posted 22-Apr-12 0:02am

Manfred Rudolf Bihy

Updated 22-Apr-12 1:08am

v3

Comments

Espen Harlinn 22-Apr-12 7:20am

Well answered Manfred :-D

VJ Reddy 22-Apr-12 11:09am

Good point. 5!

Hex01 · Accepted Answer · 2012-04-21T17:39:00

Solution 4

Instead of

C#

if (s != "-----------------")

try using

C#

if (!s.StartsWith("-"))

Posted 21-Apr-12 17:39pm

Hex01

Comments

h7h7h7 22-Apr-12 4:40am

THnx Thnx that work, but now after I delete "-----" , in first line is an space, I Try to delet that space like your code it isn't working.....
if (!s.StartsWith("-")&&!s.StartWith(" " ))..... is here any mistake or should be another code