![]() This method takes a byte array as input, which is obtained by converting the encoded string to bytes using the method. We can also use the method to decode a URL-encoded string. This expression takes the matched string as input and returns the corresponding decoded character. The match => ((char)Convert.ToInt32((1), 16)).ToString() is the lambda expression used to replace the encoded characters with their original form. The pattern " %" matches any two characters after the % symbol that represents the encoded character. This pattern matches all occurrences of the encoded characters in the string. ![]() The regular expression pattern used in this program is " (%)+". This method takes a regular expression pattern as input, which matches the encoded characters in the string. In the above program, we have used the Regex.Replace method to decode the encoded string " Hello%20World%21". String decodedString = Regex.Replace(encodedString, "(%)+", match => ((char)Convert.ToInt32((1), 16)).ToString()) Here is a sample program that demonstrates the usage of regular expressions to decode a URL-encoded string: using System This method involves writing a regular expression pattern to match the encoded characters and replace them with their original form. We can also use regular expressions to decode a URL-encoded string. In this case, the decoded string is " Hello World!". This method takes an encoded string as input and returns the decoded string as output. In the above program, we have used the Uri.UnescapeDataString method to decode the encoded string " Hello%20World%21". String decodedString = Uri.UnescapeDataString(encodedString) Here is a sample program that demonstrates the usage of the Uri.UnescapeDataString method: using System This method is available in the System namespace, so you don't need to import any additional namespaces. Method 2: Using Uri.UnescapeDataString MethodĪnother method to decode a URL-encoded string is by using the Uri.UnescapeDataString method. ![]() Then we have used the HttpUtility.UrlDecode method to decode the encoded string. This string contains the URL encoded form of " Hello World!" where %20 is used to represent a space and %21 is used to represent an exclamation mark. In the above program, we have declared an encoded string " Hello%20World%21". String decodedString = HttpUtility.UrlDecode(encodedString) String encodedString = "Hello%20World%21" Here is a sample program that demonstrates the usage of the HttpUtility.UrlDecode method: using System This method is available in the System.Web namespace, so make sure to include this namespace in your project. One of the easiest ways to convert a URL-encoded string to its original form is by using the HttpUtility.UrlDecode method. Method 1: Using HttpUtility.UrlDecode Method In this blog, we will discuss different methods to convert a URL-encoded string to its original form in C#. In C#, we can decode URL-encoded strings using different methods. The reason behind URL encoding is to provide a consistent mechanism for transmitting data between different systems. These strings are encoded in a way to make them compatible with the standard ASCII character set. In web applications, it is quite common to deal with URL-encoded strings.
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