C#

public static int Compare(string first, string second)
    {
        if (object.ReferenceEquals(first, second))
            return 0;
        if (object.ReferenceEquals(null, first)) // second cannot be null
            return -1;
        // neither string can be null
        char[] digits = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8','9' };
        int firstDigitIndex = first.IndexOfAny(digits);
        int secondDigitIndex = second.IndexOfAny(digits);
        string firstLhs = firstDigitIndex == -1 ? first : first.Substring(0, firstDigitIndex);
        string secondLhs = secondDigitIndex == -1 ? second : second.Substring(0, firstDigitIndex);
        int result = firstLhs.CompareTo(secondLhs);
        if (result == 0)
        {
            // left hand sides are equal so sort on numeric part
            int firstInteger = 0;
            int secondInteger = 0;
            if (firstDigitIndex > -1)
                int.TryParse(first.Substring(firstDigitIndex), out firstInteger);
            if (secondDigitIndex > -1)
                int.TryParse(second.Substring(secondDigitIndex), out secondInteger);
            result = firstInteger.CompareTo(secondInteger);
        }
        return result;
    }

SortAndWriteList(new List<string>(new string[] { "ABC 1", "ABC 10", "ABC 2", "ABC 100" }));
Console.WriteLine();
SortAndWriteList(new List<string>(new string[] { "ADBCDEF - 1", "ADBCDEF - 10", "ADBCDEF - 3" }));
Console.WriteLine();
Console.ReadKey();

private static void SortAndWriteList(List<string> list)
{
    if (list != null)
    {
        list.Sort(new Comparison<string>(Compare));
        foreach (string item in list)
            Console.WriteLine(item);
    }
}

ABC 1
ABC 2
ABC 10
ABC 100

ADBCDEF - 1
ADBCDEF - 3
ADBCDEF - 10

public class LogicalStringComparer : IComparer<string>
{
    [DllImport("shlwapi.dll", CharSet=CharSet.Unicode, ExactSpelling=true, SetLastError=true)]
    private static extern int StrCmpLogicalW(string x, string y);
    
    public int Compare(string x, string y)
    {
        return StrCmpLogicalW(x, y);
    }
}

dynamic v1 = "string";
v1 = 100;
v1 = new Dictionary<string, string>();

abdul rafi wrote:

but it transfer the controll to next cell after pressing the enter key two times

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

DirectoryInfo da = new DirectoryInfo("C:\\Folder");
FileInfo[] Arr = da.GetFiles();
if (Arr.Length == 0)
{
    throw new InvalidOperationException("No files found.");
}


// No need to loop through the array just to get the last item:
FileInfo ap = Arr[Arr.Length - 1];
long Totbyte = ap.Length;
string filePath = ap.FullName;
Console.WriteLine("Total Bytes = {0} bytes", Totbyte);


// GetTempFileName *creates* the file, so it always exists:
string temPath = Path.GetTempFileName();
byte[] data = File.ReadAllBytes(filePath);
File.WriteAllBytes(temPath, data);


// Convert the bytes to decimals:
decimal[] arry = new decimal[Totbyte];
for (int count = 0; count < data.Length; count++)
{
    arry[count] = data[count];
}


// Convert the decimals back to bytes:
byte[] data2 = new byte[Totbyte];
for (int count = 0; count < arry.Length; count++)
{
    data2[count] = (byte)arry[count];
}


// Just to prove they're the same:
if (data2.Length != data.Length)
{
    throw new InvalidOperationException("Wrong length!");
}
for (int index = 0; index < data.Length; index++)
{
    if (data[index] != data2[index])
    {
        throw new InvalidOperationException("Data has changed at index " + index);
    }
}


// Write the bytes back to the file:
File.WriteAllBytes(filePath, data2);


// To prove they're still the same:
data = File.ReadAllBytes(temPath);
data2 = File.ReadAllBytes(filePath);

if (data2.Length != data.Length)
{
    throw new InvalidOperationException("Wrong length!");
}
for (int index = 0; index < data.Length; index++)
{
    if (data[index] != data2[index])
    {
        throw new InvalidOperationException("Data has changed at index " + index);
    }
}

// Write the bytes to a different file:
string filePath2 = Path.Combine("C:\\A Different Folder", Path.GetFileName(filePath));
File.WriteAllBytes(filePath2, data2);

<pre>/*
IT DOESN'T WORK..I ADDED THE LINE:::string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));
I RAN THE PROGRAM AND CHECK FOLDER WAS EMPTY. THE FILE WAS NOT WRITTEN TO THE NEW LOCATION. ALL I WANT TO DO SEE ANOTHER INSTANCE OF THE FILE
*/

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo da = new DirectoryInfo("C:\\Folder");
            FileInfo[] Arr = da.GetFiles();
            if (Arr.Length == 0)
            {
                throw new InvalidOperationException("No files found.");
            }
            // No need to loop through the array just to get the last item:
            FileInfo ap = Arr[Arr.Length - 1];
            long Totbyte = ap.Length;
            string filePath = ap.FullName;
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);
            // GetTempFileName *creates* the file, so it always exists:
            string temPath = Path.GetTempFileName();
            byte[] data = File.ReadAllBytes(filePath);
            File.WriteAllBytes(temPath, data);
            // Convert the bytes to decimals:
            decimal[] arry = new decimal[Totbyte];
            for (int count = 0; count < data.Length; count++)
            {
                arry[count] = data[count];
            }
            // Convert the decimals back to bytes:
            byte[] data2 = new byte[Totbyte];
            for (int count = 0; count < arry.Length; count++)
            {
                data2[count] = (byte)arry[count];
            }
            // Just to prove they're the same:
            if (data2.Length != data.Length)
            {
                throw new InvalidOperationException("Wrong length!");
            }
            for (int index = 0; index < data.Length; index++)
            {
                if (data[index] != data2[index])
                {
                    throw new InvalidOperationException("Data has changed at index " + index);
                }
            }
            // Write the bytes back to the file:
            string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));
            File.WriteAllBytes(filePath, data2);
            // To prove they're still the same:
            data = File.ReadAllBytes(temPath);
            data2 = File.ReadAllBytes(filePath);
            if (data2.Length != data.Length)
            {
                throw new InvalidOperationException("Wrong length!");
            }
            for (int index = 0; index < data.Length; index++)
            {
                if (data[index] != data2[index])
                {
                    throw new InvalidOperationException("Data has changed at index " + index);
                }
            }

        }
    }
}

computerpublic wrote:

string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));
File.WriteAllBytes(filePath, data2);

// Write the bytes to a different file:
string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));
File.WriteAllBytes(filePath2, data2); // <-- NB: Pass filePath2 here, not filePath!

<pre>/*
I AM NOW TRYING TO CONVERT BYTE TO STRING AND ALSO CONVERTING BACK FROM STRING TO BYTE. 
I ALSO WANT TO SEE THE OUTPUT.
I AM NOT UNDERSTING WHY I AM GETTING AN ERROR.
THE OUTPUT INFORMATION IS BELOW::

Total Bytes = 8228730 bytes

Unhandled Exception: System.InvalidOperationException: Data has changed at index
 310
   at Applica.Program.Main(String[] args) in C:\Documents and Settings\shampro\D
esktop\Program.cs:line 41
Press any key to continue . . .
*/

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo da = new DirectoryInfo("C:\\Folder");
            FileInfo[] Arr = da.GetFiles();
            if (Arr.Length == 0)
            {
                throw new InvalidOperationException("No files found.");
            }
            // No need to loop through the array just to get the last item:
            FileInfo ap = Arr[Arr.Length - 1];
            long Totbyte = ap.Length;
            string filePath = ap.FullName;
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);
            // GetTempFileName *creates* the file, so it always exists:
            string temPath = Path.GetTempFileName();
            byte[] data = File.ReadAllBytes(filePath);
            File.WriteAllBytes(temPath, data);
            // Convert the bytes to string:
            string arry = ASCIIEncoding.ASCII.GetString(data);
            Console.WriteLine(arry);
            // Convert the string back to bytes:
            byte[] data2 = Encoding.ASCII.GetBytes(arry);
            foreach (byte element in data2)
            {
                Console.WriteLine("{0}={1}",element ,(char)element);
            }
            // Just to prove they're the same:
            if (data2.Length != data.Length)
            {
                throw new InvalidOperationException("Wrong length!");
            }
            for (int index = 0; index < data.Length; index++)
            {
                if (data[index] != data2[index])
                {
                    throw new InvalidOperationException("Data has changed at index " + index);
                }
            }
            // Write the bytes back to the file:
            string filePath2 = Path.Combine("C:\\check", Path.GetFileName(filePath));
            File.WriteAllBytes(filePath2, data2);
            // To prove they're still the same:
            data = File.ReadAllBytes(temPath);
            data2 = File.ReadAllBytes(filePath);
            if (data2.Length != data.Length)
            {
                throw new InvalidOperationException("Wrong length!");
            }
            for (int index = 0; index < data.Length; index++)
            {
                if (data[index] != data2[index])
                {
                    throw new InvalidOperationException("Data has changed at index " + index);
                }
            }

        }
    }
}