Re: How to check if extensions follows up in a list? - C# Discussion Boards

Re: How to check if extensions follows up in a list?

11-Mar-09 23:39

I understand what your asking now, sorry for the confusion. I think you can solve this problem by counting the number of like files. Final Question are the files always going to be in chronological order?

dan!sh 12-Mar-09 0:11

Re: How to check if extensions follows up in a list?

12-Mar-09 0:11

Do you mean this?

If file 1 and 2 are jpg, then 3 and 4 must be tif. That is: 2-2

if 5 is jpg, then 6 must be tif. That is 1-1.

In short, number of consecutive jpf files must be equal to number of consecutive tif files. And these must be together.

And if the order is not like the one above, then show error.

Happy Holi[^]
जय हिंद

Matjaz-xyz12-Mar-09 0:20

Re: How to check if extensions follows up in a list?

12-Mar-09 0:20

Yes. That's right.

Regards,
Matjaž

dan!sh 12-Mar-09 0:26

Re: How to check if extensions follows up in a list?

12-Mar-09 0:26

AFAIK you just need to set up some loops wisely. Here is a bit of quick and dirty approach I could think of:

List <string> s = new List <string>();
       s.Add("jpg");
       s.Add("tif");
       s.Add("jpg");
       s.Add("tif");
       s.Add("jpg");
       s.Add("jpg");
       s.Add("tif");
       s.Add("tif");
       s.Add("jpg");
       s.Add("tif");

       bool breakFor = false;
       int togetherCount = 1;
       for (int i = 1;i < s.Count -1;i++) {

         if (s[i] == s[i - 1]) {
           togetherCount++;
           continue;
         }
         else {
           int count = 0;
           while (count < togetherCount) {
             if (!(s[i + 1] == s[i + count])) {
               if (togetherCount > 1) {
                 MessageBox.Show("error");
                 breakFor = true;
                 break;
               }
             }
             count++;
           }
           if (breakFor) {
             break;
           }
           else {
             i = i + togetherCount;
             togetherCount = 1;
           }
         }
       }</string></string>

It might not be correct but good to start off I guess.

Happy Holi[^]
जय हिंद

Matjaz-xyz12-Mar-09 0:36

Re: How to check if extensions follows up in a list?

12-Mar-09 0:36

Hmm... it sure looks like it's in the right way. Thanks for taking the time. I'll try to implent something similar and report what happend.

Thank you

Regards,
Matjaž

Matjaz-xyz12-Mar-09 1:44

Re: How to check if extensions follows up in a list?

12-Mar-09 1:44

Somehow it seems i didnt implent this correctly... or it doesnt work right (like you said, it could and could not work)...

aah :/

if (fbd1.ShowDialog() != DialogResult.Cancel)
            {
                if (checkBox1.Checked == true)
                    DIRI.Items.AddRange(Directory.GetDirectories(fbd1.SelectedPath, "*.*", SearchOption.AllDirectories));
                else
                    DIRI.Items.AddRange(Directory.GetDirectories(fbd1.SelectedPath, "*.*", SearchOption.TopDirectoryOnly));


                for (int i = 0; i < DIRI.Items.Count; i++)
                {
                    ArrayList DATOTEKE = new ArrayList();
                    DATOTEKE.AddRange(Directory.GetFiles(DIRI.Items[i].ToString().ToLower()));

                    ArrayList KONCNICE = new ArrayList();

                    for (int bo = 0; bo < DATOTEKE.Count; bo++)
                    {
                        KONCNICE.Add(Path.GetExtension(DATOTEKE[i].ToString()));
                    }



                    bool breakFor = false;
                    int togetherCount = 1;
                    for (int j = 1; j < KONCNICE.Count - 1; i++)
                    {
                        if (KONCNICE[j] == KONCNICE[j - 1])
                        {
                            togetherCount++;
                            continue;
                        }
                        else
                        {
                            int count = 0;
                            while (count < togetherCount)
                            {
                                if (!(KONCNICE[j + 1] == KONCNICE[j + count]))
                                {
                                    if (togetherCount > 1)
                                    {
                                        //if (listBox1.FindStringExact(DIRI.Items[i].ToString()) > 0)
                                            listBox1.Items.Add(DIRI.Items[i].ToString());
                                        breakFor = true;
                                        break;
                                    }
                                }
                                count++;
                            }
                            if (breakFor)
                            {
                                break;
                            }
                            else
                            {
                                j = j + togetherCount;
                                togetherCount = 1;
                            }
                        }
                    }


                }
            }

Regards,
Matjaž

dan!sh 12-Mar-09 2:21

Re: How to check if extensions follows up in a list?

12-Mar-09 2:21

I would say, debug the code and find where you are wrong. Get hold of the logic and you will be done.

Matjaž Grahek wrote:
if (!(KONCNICE[j + 1] == KONCNICE[j + count]))

One thing I can figure out is you need to remoe this + 1. I have not debugged the code just read it so I may go wrong.

Happy Holi[^]
जय हिंद

Luc Pattyn12-Mar-09 3:33

Luc Pattyn

12-Mar-09 3:33

In today's pseudo-language that would be:

filelist=getAllFilenames()
filelist.Sort
diff=0
foreach(file in filelist) {
  if (jpg) diff++
  else diff--
  if (diff<-1 or diff>1) error
}

Two remarks:

1. to get a natural sort order for the file names, same as Windows Explorer does, you would need to use Explorer's code, i.e. use P/Invoke and the prototype:

[DllImport("shlwapi.dll", CharSet=CharSet.Unicode, ExactSpelling=true)]
private static extern int StrCmpLogicalW(string s1, string s2);

Of course if the name part is just a number, you could use int.Parse and sort based on the outcome.

2. I cannot imagine where and how your requirement could ever have a useful application.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

- before you ask a question here, search CodeProject, then Google
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Re: How to check if extensions follows up in a list?

Xmen Real 12-Mar-09 0:14

Xmen Real

12-Mar-09 0:14

If its about Windows Explorer than I think its not possible. The sorting is simple as its string...
Why error occur, if you check the extension...or I might not get your question

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Re: How to check if extensions follows up in a list?

Matjaz-xyz12-Mar-09 0:22

Re: How to check if extensions follows up in a list?

12-Mar-09 0:22

It doesnt concern explorer.

Basicly, the intention of this application would be to check if JPG files have their duplicate TIF files.

If it would be just 1-1, then i could do it... but i cant figure this one out.

And what i ment by an error was to put as an output - in which folder the files dont match.

Regards,
Matjaž

Xmen Real 12-Mar-09 0:27

Xmen Real

12-Mar-09 0:27

its simple then...

try this

bool Test(string dirPath)
{
    string[] filePaths = Directory.GetFiles(dirPath, "*.jpg");
    for (int a = 0; a < filePaths.Length; a++)
    {
        if (!File.Exists(Path.Combine(dirPath, Path.GetFileNameWithoutExtension(filePaths[a]) + ".tif")))
            return false;
    }
    return true;
}

Re: How to check if extensions follows up in a list?

Matjaz-xyz12-Mar-09 0:30

Re: How to check if extensions follows up in a list?

12-Mar-09 0:30

Umm not duplicates :/ sorry... just... the follow up files.
1.jpg has his own tif, but with a different name. example... 3.tif, because there is another 2.jpg before.

Regards,
Matjaž

dan!sh 12-Mar-09 0:33

Re: How to check if extensions follows up in a list?

12-Mar-09 0:33

In that case, just get the count of files with JPG and count of files with TIF and they must be equal.

Dump the code I had posted.

Edit: There is a lot of misunderstanding going on in this post. D'Oh! | :doh:

Happy Holi[^]
जय हिंद

Matjaz-xyz12-Mar-09 0:35

Re: How to check if extensions follows up in a list?

12-Mar-09 0:35

I already thought of that - but it is definitly a no-go. Why? Well, maybe there are some files which dont have their tifs, but some tiffs dont have their jpgs - and the count may match.

Regards,
Matjaž

Xmen Real 12-Mar-09 0:35

Xmen Real

12-Mar-09 0:35

aha I got ya now. The thing you want called Stack. Last In Last Out.

Re: How to check if extensions follows up in a list?

Luc Pattyn12-Mar-09 3:44

Luc Pattyn

12-Mar-09 3:44

Matjaž Grahek wrote:
1.jpg has his own tif, but with a different name

that is plain stupid. Extensions exist so files that belong together can share the name part of a filename. Use it to your advantage rather than strugging with some code to fix the mistake.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

WIN directory to DOS directory question

Goobashi11-Mar-09 23:22

11-Mar-09 23:22

Is there a super easy way to convert a string generated from something like Application.StartupPath to dos compatibility (i.e. directories with spaces have quotes around them and Directories that are too long have a ~ inserted?

Thanks,
Colin

musefan11-Mar-09 23:44

musefan

11-Mar-09 23:44

yeah, you format the string yourself, how much easier can you get? (without doing any work that is)

Life goes very fast. Tomorrow, today is already yesterday.

Goobashi11-Mar-09 23:56

11-Mar-09 23:56

I figured as much, just wanted to make sure I wasn't missing somethign horribly obvious like toString.DosCompatability Smile | :)

or something dumb like that Smile | :)

Matjaz-xyz12-Mar-09 1:00

12-Mar-09 1:00

Try this:

Path.GetTempFileName();
Path.GetTempPath();

I think you'll manage implanting this one Smile | :)

Regards,
Matjaž

How to run an expression which is in string format?

0x3c012-Mar-09 1:44

0x3c0

12-Mar-09 1:44

Try using the GetShortPathName API. You can get the function signature at pinvoke.net, and an example here

RezaAsAdi11-Mar-09 23:08

RezaAsAdi

11-Mar-09 23:08

Dear developers

I need to provide an environment that users can build a formula usuin field names of a database
table and some string functions like "substr","left", and "right".The environment saves formula
in a string variable,and when user clicks a button,my code must run that formula over values of
those fields for selected record of that table.
Now,I have that environment and it returns formula as a sring to me,but I don't still have any
idea how to run this string.Do I have to write some code to compile it?I found that .Net has
some namespaces for building dynamic methods,I mean Document object model,but if I want to use
classes of this namesapce I have to convert that formula to IL,which is more difficult for me.
Is there any other idea how I can run a user defined expression inside my code and show up its
result to user?That expression can be like this,if we suppose all table field names start with
"fld":
"fldDKCode+fldDKSerial+Substr(fldDKDate,3,2)+fldDKId+Left(fldDKUserName)"
and I have a database table named TBDKUsers,includes all fields mentioned above.When user clicks
on Run button,my program must show the result of this expression for selected record of TBDKUsers.

Thank you very much\
Reza

Re: How to run an expression which is in string format?

Expert Coming11-Mar-09 23:11

Expert Coming

11-Mar-09 23:11

I can't really understand what you are doing, but I think this might be it. You are having users write an expression string that will pull out of a (SQL?) database? If so, just take those expressions and turn them into the equivalent SQL statement. If you are using a different database system, the steps will still be almost the same.

The best way to accelerate a Macintosh is at 9.8m/sec² - Marcus Dolengo

Re: How to run an expression which is in string format?

Goobashi11-Mar-09 23:44