Convert Strings to URL Decode using C#

URL encoding is a mechanism to replace special characters with percent-encoded equivalents. For example, a space (' ') in a URL becomes '%20', and an ampersand ('&') becomes '%26'. This encoding ensures that URLs remain valid and can be safely transmitted over the internet.

Why URL Decoding:?

While working with web applications or handling data from URLs, it's common to encounter URL-encoded strings. To process or display this data correctly, it becomes essential to decode these strings back to their original form. C# provides a easy method for this task - HttpUtility.UrlDecode.

using System;
using System.Web;

class Program
{
    static void Main()
    {
        // URL-encoded string
        string encodedString = "Hello%20World%21";

        // Decoding the URL-encoded string
        string decodedString = HttpUtility.UrlDecode(encodedString);

        // Displaying the original and decoded strings
        Console.WriteLine("Original String: " + encodedString);
        Console.WriteLine("Decoded String : " + decodedString);
    }
}

Output:

Original String: Hello%20World%21
Decoded String : Hello World!

• We start by defining a URL-encoded string (encodedString).
• The HttpUtility.UrlDecode method is then used to decode the string, and the result is stored in decodedString.
• Finally, the original and decoded strings are displayed, showcasing the transformation.