C# String to Hex

Introduction

In C#, you may need to convert a string to its corresponding hexadecimal representation for various purposes, such as encoding or checksum calculations. This guide will provide you with an example of converting a string to a hexadecimal format using C#.

Implementation

public string ConvertStringToHex(string input)
{
    StringBuilder hexBuilder = new StringBuilder();

    foreach (char c in input)
    {
        hexBuilder.Append(((int)c).ToString("X2"));
    }

    return hexBuilder.ToString();
}

Explanation

The code snippet above demonstrates a method ConvertStringToHex that takes a string parameter input and returns the corresponding hexadecimal representation of the input string.

1. We create a StringBuilder named hexBuilder to efficiently build the hexadecimal representation.
2. Using a foreach loop, we iterate over each character c in the input string.
3. We convert the character c to its corresponding ASCII value using (int)c and then convert it to a hexadecimal string using .ToString("X2").
4. The "X2" format specifier ensures that the hexadecimal string is padded with leading zeros to always contain two digits.
5. Each hexadecimal value is appended to the hexBuilder using the Append method.
6. Finally, we return the hexadecimal representation as a string using hexBuilder.ToString().

Usage

You can use the ConvertStringToHex method to convert any string to its hexadecimal representation:

string input = "Hello, World!";
string hexadecimalString = ConvertStringToHex(input);
Console.WriteLine(hexadecimalString);

Output:

48656C6C6F2C20576F726C6421

Conclusion

Converting a string to its hexadecimal representation can be useful in various scenarios. The provided code snippet allows you to easily accomplish this task in C#. Feel free to modify and extend the code as per your specific requirements.