C#

Quote:

C#

char[] charArr = new char[str.Length];
for (int i = 0; i < str.Length; i++)
{
    charArr[i] = str.ToCharArray()[i];
}

char[] charArr = new char[str.Length];
for (int i = 0; i < str.Length; i++)
{
    charArr[i] = str[i];
}

char[] charArr = str.ToCharArray();

Quote:

C#

fixed (char* charPtr = charArr)
{
    return charPtr;
}

public static unsafe class UtilitiesForUTF16
{
    /*
     *  string from char* (UTF16)
     */
    public static string CharPointerToString(char* ptr)
    {
        if (ptr == null)
            return string.Empty;

<pre>
    int length = 0;
    while (ptr[length] != '\0')
    {
        length++;
    }

    return new string(ptr, 0, length);
}

/*
 *  char* (UTF16) from string
 */
public static char* StringToCharPointer(string input)

Console.WriteLine()

string string_str1 = "Hello World!";
char* char_str1 = StringToCharPointer(string_str1);
Console.WriteLine($"Result: {CharPointerToString(char_str1)}");
Console.WriteLine($"Length of CharPointer: {CharPointerLength(char_str1)}");

char* char_str2 = stackalloc char[] { 'H', 'e', 'l', 'l', 'o' };
string str2 = CharPointerToString(char_str2);
Console.WriteLine($"Result: {str2}");
Console.WriteLine($"Length of CharPointer: {CharPointerLength(char_str2)}");

@Html.ValidationMessageFor(s => s.Activation_Date, "Where we're going Marty, we don't need roads");

RuleFor(x => x.Activation_Date).NotEmpty().WithMessage("Activation Date is required");
RuleFor(x => x.Activation_Date).GreaterThanOrEqualTo(DateTime.Today).WithMessage("Activation Date must be greater than or equal to the current date");

int showCount = 10;
foreach (string f in Directory.GetFiles(directory))
{
      Console.WriteLine(lvlSeperator + Path.GetFileName(f));
      if (--showCount <= 0) break;
}

foreach (string f in Directory.GetFiles(directory).Take(10))
{
      Console.WriteLine(lvlSeperator + Path.GetFileName(f));
}

Directory.GetFiles Method (System.IO) | Microsoft Learn[^]

The order of the returned file names is not guaranteed; use the Sort method if a specific sort order is required.

FindNextFileA function (fileapi.h) - Win32 apps | Microsoft Learn[^]:

The order in which this function returns the file names is dependent on the file system type. With the NTFS file system and CDFS file systems, the names are usually returned in alphabetical order. With FAT file systems, the names are usually returned in the order the files were written to the disk, which may or may not be in alphabetical order. However, as stated previously, these behaviors are not guaranteed.

const int NumberOfFiles = 10;
const int Capacity = NumberOfFiles + 1;

SortedList<string, string> firstFiles = new(Capacity, StringComparer.OrdinalIgnoreCase);
foreach (string filePath in Path.EnumerateFiles(directoryPath))
{
    string fileName = Path.GetFileName(filePath);
    firstFiles.Add(fileName, filePath);
    if (firstFiles.Count == Capacity) 
    {
        firstFiles.RemoveAt(firstFiles.Count - 1);
    }
}

Kevin Marois wrote:

With GetDriveInfo, how do I know if a drive that says CDRom is really a DVDRom?

GetDriveTypeA function (fileapi.h) - Win32 apps | Microsoft Learn[^]:

DRIVE_UNKNOWN
The drive type cannot be determined.

DRIVE_NO_ROOT_DIR
The root path is invalid; for example, there is no volume mounted at the specified path.

DRIVE_REMOVABLE
The drive has removable media; for example, a floppy drive, thumb drive, or flash card reader.

DRIVE_FIXED
The drive has fixed media; for example, a hard disk drive or flash drive.

DRIVE_REMOTE
The drive is a remote (network) drive.

DRIVE_CDROM
The drive is a CD-ROM drive.

DRIVE_RAMDISK
The drive is a RAM disk.

if (float.TryParse(myTextBox.Text, out float result))
   {
   Console.WriteLine(result);
   }