help pls

Hello. Im a starter in C# and i need some help with some codes.

What i need is to display the folder statistics of a particular folder. ( in this occasion i want C:\Windows). Display the following statistics about all the files in the current folder.

Total files: 49
Total size of all files: 7121424 bytes
Largest file: explorer.exe, 2871808 bytes
Average file length: 145335 bytes


this is what i want to display. Please someone tell me the code for this things. Im a starter please something simple if it is possible. Please if it is possible include a full code with variables etc.

Thanks in advance.

Code:

---

using System;
using System.IO;

namespace TestConsole
{
    public class Program
    {
        public static void Main(string[] args)
        {
            long fileCount = 0;
            long totalSizeOfAllFiles = 0;
            long largestFileSize = 0;
            long averageFileLength = 0;
            string largestFileName = String.Empty;
            string[] filePaths;

            Console.WriteLine("Processing Files...");

            try
            {
                filePaths = Directory.GetFiles(@"C:\Windows", "*.*", SearchOption.AllDirectories);

                foreach (string path in filePaths)
                {
                    FileInfo info = new FileInfo(path);

                    fileCount++;
                    totalSizeOfAllFiles += info.Length;
                    if (info.Length > largestFileSize)
                    {
                        largestFileSize = info.Length;
                        largestFileName = info.Name;
                    }
                }
                averageFileLength = (totalSizeOfAllFiles / fileCount);

                Console.WriteLine("File Count: {0}", fileCount);
                Console.WriteLine("Total Size: {0} bytes", totalSizeOfAllFiles);
                Console.WriteLine("Largest File: {0} ({1} bytes)", largestFileName, largestFileSize);
                Console.WriteLine("Average File Size: {0} bytes", averageFileLength);
                Console.WriteLine("Press any key to exit...");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
            finally
            {
                Console.ReadLine();
            }
        }
    }
}

---

I was getting an exception when the Directory.GetFiles() method tried to access the C:\Windows\...\RtBackup folder. It will probably be the same for you, so just keep that in mind. But it should work on just about any other folders on the system.

Life saver it worked.

I really really appreciate it my friend. Thanks a lot.

Quote:

---

Originally Posted by blacksmoke40

Life saver it worked.

I really really appreciate it my friend. Thanks a lot.

---

No problem. Little exercises like this help refresh me on concepts I haven't used in awhile, haha.

i was wondering if you can help me with filtered File Listing. What i mean is i want to ask the user for a file filter and display only the files in the current folder that match that filter. An example of a filter might be "*.exe", which only shows the files ending with .exe

i was wondering if you can help me with filtered File Listing. What i mean is i want to ask the user for a file filter and display only the files in the current folder that match that filter. An example of a filter might be "*.exe", which only shows the files ending with .exe also displaying the filter used

Easy enough. You see where Directory.GetFiles() is called? You can specify the filter there. I used the filter "*.*" to get all files. But you could prompt the user for a filter by altering the code so it looks similar to

Code:

---

string filter;

Console.Write("Please enter a file filter: ");  // prompt for the filter
filter = Console.ReadLine();                          // get the filter

filePaths = Directory.GetFiles(@"C:\Windows", filter, SearchOption.AllDirectories); // apply the filter and call GetFiles()

---

This would prompt the user to input a filter and then pass that filter to the Directory.GetFiles() method.

You would see something like

Code:

---

Please enter a file filter: *.exe

---

Popup on the screen when you run it.

im expiriencing some difficulties. its a very small program. if it is easy to you can i send it to you and help me with it ?

its something like a menu and i cant return after i enter a choice. for example i can choose from 1 to 4. if i choose something and im done with it how can i return back to that menu ?

Use a while loop and evaluate each input :)

Code:

---

            bool exit = false;

            while (!exit)
            {
                string optionStr;
                int option;

                Console.WriteLine("Please enter an option: ");
                Console.WriteLine("1: <option 1>");
                Console.WriteLine("2: <option 2>");
                Console.WriteLine("3: <option 3>");
                Console.WriteLine("4: Exit");

                optionStr = Console.ReadLine();
                option = Int32.Parse(optionStr);

                switch (option)
                {
                    case 1:
                        // execute option 1
                        break;
                    case 2:
                        // execute option 2
                        break;
                    case 3:
                        // execute option 3
                        break;
                    case 4:
                        exit = true;    // cause main loop to break
                        break;
                    default:
                        Console.WriteLine("Sorry, {0} is not a valid option.", option);
                        break;
                }
            }

---

I know it's a common pattern, but I don't remember the name for it... Once you get into command line loops in college and such you'll see it all the time.

https://rapidshare.com/files/828697748/Menu.rar

please help me complete it. I m struggling to finish it and i cant.

Hi. I need help again pls respond you are a life saver :P.
i have this situation.

{
DirectoryInfo folderInfo = new DirectoryInfo("C:\\Windows");
FileInfo[] files = folderInfo.GetFiles();
Console.WriteLine("Currently Displaying Files within C:\\Windows");
Console.WriteLine();
Console.WriteLine("Please Select one of these operations");
Console.WriteLine();
Console.WriteLine(" 1. Full File Listing");
Console.WriteLine(" 2. Filtered File Listing");
Console.WriteLine(" 3. Folder Statistics");
Console.WriteLine(" 4. Quit");
Console.WriteLine();
string yesNo;
int userInput;
bool isNumber = int.TryParse(Console.ReadLine(), out userInput);
while (isNumber == false || userInput <= 0 || userInput > 4)

if (isNumber == false)
{
Console.WriteLine("Cannot enter letters. Please enter again only a number from 1 to 4");
}
else
{
Console.WriteLine("Please enter a number from 1 to 4: ");
}

isNumber = int.TryParse(Console.ReadLine(), out userInput);

}

while (isNumber == true)
{
if (userInput == 1) // Will display a Full File Listing
{

}

else if (userInput == 2) // Will display a Filtered File Listing
{

}

else if (userInput == 3) // Will display the Folder's Statistics
{

}

else if (userInput == 4) // Will Quit the Program

do
{
Console.Write("Are you sure you want to exit ? Enter y or n: ");
yesNo = Console.ReadLine().ToLower();
} while (yesNo != "y" && yesNo != "n");

else
{

}



i have used else if instead of case. there is a menu from 1 to 4. when the user selects something from 1-4 and is done with it i want when he press any button to return back to that main menu that he is prompted to select one of these options. Also on option 4 what is the code to stop the program for running ?

Can you help me with it ?