RAR / UNRAR

Question

hello every one,
i was asked to make a program that does a RAR for certain files in a folder
i only care for the way to RAR or UNRAR a selected file that i provide to this program
i tried to search google for solutions or components but i didnt find any
 imp notice: .zip is not an option because i need to apply the .rar to VERY large files ( >2 GB )

i hope i can find the solution
and thank you for teh help

Answer 1

Hi DaMehio,

 

We can use command to call a rar program to achieve your goal. We can use Process.Start to execute a command in C#. This is a code snippet shows how to call winrar to package or extract files:

//Rar path
private const string RAR_PATH = @"C:\Program Files (x86)\WinRAR\WinRAR.exe";
//Package files.
private void RarFiles(string rarPackagePath, List<string> files)
{
    for(int i = 0; i < files.Count; i++)
    {
        files[0] = string.Format("\"{0}\"", files[i]);
    }
    string fileList = string.Join(" ", files.ToArray());
    string cmdArgs = string.Format("A {0} {1}",
        String.Format("\"{0}\"", rarPackagePath),
        fileList);
    Process.Start(String.Format("\"{0}\"", RAR_PATH), cmdArgs);
}
//Extract files.
private void UnrarFiles(string rarPackagePath, string dir)
{
    string cmdArgs = string.Format("X {0} * {1}",
        String.Format("\"{0}\"", rarPackagePath),
        String.Format("\"{0}\"", dir));
    Process.Start(String.Format("\"{0}\"", RAR_PATH), cmdArgs);
}

 

 

You can get more support about winrar from:
http://www.win-rar.com/winrarsupport.html.

 

Let me know if this helps.
Aland Li  

This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites; therefore, Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. There are inherent dangers in the use of any software found on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet.

 

---

Please mark the replies as answers if they help and unmark if they don't. This can be beneficial to other community members reading the thread.

Answer 2

well ya thank you it seems very logical and works
but i still have few questions

1- in the RAR_Path string, is the "(x86)" to be always included or it just depends on the path
2-  in the for loop for the RAR function, i think you should have put files[i] instead of files[0] ?

3- can you please show me how to pass the parameters of ( List<string> files ) When calling the function ?

thank you ...
(am Damehio)

Answer 3

Hi DaMehio,

These are my replies:

1.    This is the path of the winrar program on my machine. My operation system is 64-bit, so it adds “x86” because the winrar program is 32-bit. On your machine, it may be different, so you need to replace this string to the winrar program path on your machine.

2.    Yes, you are right. I am sorry for the mistake. I have correct it.

3.    The command I show is to package some files. The code can be like below:
List<string> files = new List<string>();
files.Add(@"C:\my\test1.txt");
files.Add(@"C:\my\test2.txt");
files.Add(@"C:\my\test3.txt");
RarFiles(@"C:\my\test.rar", files);
If you would like to add all the files in a directory, the code can be like bellow:
List<string> files = new List<string>();
files.AddRange(System.IO.Directory.GetFiles(@"C:\my\test.rar"));
RarFiles(@"C:\my\test.rar", files);
If you would like to add a whole directory to a package, you need to change to another command. You can find related command via the link I provided in my last reply.

Let me know if this helps.
Aland Li

---

Please mark the replies as answers if they help and unmark if they don't. This can be beneficial to other community members reading the thread.

Answer 4

it worked perfectly thank you very much !

one notice, i think you should edit the for loop

files[i] =

string.Format("\"{0}\"", files[i]);

thanks again

Answer 5

Hi DaMehio,

I have corrected the mistake. Please mark my reply as answer if it solves your issue. Thanks for pointing out my mistake.

Best regards,
Aland Li

---

Please mark the replies as answers if they help and unmark if they don't. This can be beneficial to other community members reading the thread.

Answer 6

hi i was interested in this solution but i came across one problem.
What is "rarPackegePath" standing for ???? i mean when you call this method from outside what is the value that "rarPackegePath"is going to get???

itried this once by giving to rarPackagePath the path to where i was going to form mine rar file rarPackagePath=F:\test\ but this gave me the following error :
C:\Documents and Settings\drini.bregasi\My Documents\Visual Studio 2008\Projects\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\F\test\.rar: Cannot open F\test\daemon4304-lite.exe
The system cannot find the path specified.
Cannot create F\test\.rar
The system cannot find the path specified.
 

Answer 7

Hi drini,

"rarPackagePath" refers to the path of the .rar file, for example "C:/test.rar".

Regards,
Aland Li

---

Please mark the replies as answers if they help and unmark if they don't. This can be beneficial to other community members reading the thread.

Answer 8

yes thank you for the reply
i had missed the call that you make to RarFiles three answer above.

Answer 9

hi, i changed a little the script to suit mine problem but when the rar process is finished I see that the rar has been performed till two directory above the directory where the file reside.
Ex:
the file is located at F:\test\winamp\winamp.exe after the rar winamp.rar is formed inside winamp directory but when i get inside it the rar process has started from:
 test\winamp\winamp.exe

how can i fixe this in way that the rar process encapsulates only the file that i want to rar 

Answer 10

Aland Li,

I followed this series and I have a few questions.
You mention in places that you corrected errors, but I see none made. If you did make corrections would it be possible to post those here for everyone to see, if you did and I missed them I apologize.

I am interested in adding only one file to an archive, could you possibly show how you would change your code to just rar a file named "filename.asc" (or anything.)

I noticed that you used the Winrar.exe, would the rar.exe be used differently, or would the syntax be the same?

Thank you for your assistance.

Danny

Answer 11

the answer to use Winrar just for one file is described in this thread:
                                         http://social.msdn.microsoft.com/Forums/en-US/winformsapplications/thread/e2e354c8-0feb-4839-8efb-9f176e43d76f

if you follow the posts carefully and make some test with them you will find that they are the right ones.

Answer 12

The post you sent me to only comes back to this one.

I was hoping to see the corrected code example, unless the code above has already been corrected.

In the link you told "For example, the command can be as follows:
cd C:\Users\v-shunli\Documents\MyFile
"C:\Program Files (x86)\WinRAR\WinRAR.exe" A "test.rar" "Rad.RegexDesigner.Setup.1.4.exe"

I admit I am very new to C# but this does not appear to be C# code.

Thank you for sharing,

Danny

Answer 13

that is not c# code, that is cmd code that it can be used from within c# to set the active directory to the place where the file you want to rar is
ex: if your files is in D:\test\file.exe than by using this code directory.SetCurrentDirectory(@"D:\test"); you put your active directory to "test".

now:
          private const string RAR_PATH = @"C:\Program Files\WinRAR\WinRAR.exe";

        static void Main(string[] args)
        {
            string[] rarName = null;
         
                Directory.SetCurrentDirectory( @"D:\test" );
                string[] file = Directory.GetFiles( @"D:\test" , "*.txt"); \\ this find you inside a directory all the files that meet the second parameter
              
                        string[] V = file[0].Split('\\');
                        for (int x = 0; x < V.Length; x++)
                            rarName = V[x].Split('.');


                        string cmdArgs = string.Format("A {0} {1}", rarName[0] + ".rar", rarName[0] + ".txt");
                        Process.Start(String.Format("\"{0}\"", RAR_PATH), cmdArgs);

         }
    
hope this helps you if you have any questions regarding how it is working just post it here   

Answer 14

Hello Friends,

 

i want C# code for rar the files from source folder contain number of folder and number of file and rar file put on destination folder

can u help... please tell me code C#

 

thanks