How to decode string to XML string in C#

How to decode string to XML string in C#

To decode a string containing XML-encoded characters back to a regular XML string in C#, you can use the System.Security.SecurityElement class. This class provides a static method named Escape that can be used to perform the decoding. Here's an example of how to do it:

using System; using System.Security; class Program { static void Main() { // Encoded XML string string encodedXml = "<root><item>Hello</item></root>"; // Decode the XML-encoded string string decodedXml = SecurityElement.Escape(encodedXml); Console.WriteLine("Decoded XML:"); Console.WriteLine(decodedXml); } }

Output:

Decoded XML: <root><item>Hello</item></root>

In this example, we have an XML string encodedXml that contains XML-encoded characters such as "<" and ">" representing the characters < and > respectively. The SecurityElement.Escape method decodes these encoded characters back to their original form, resulting in the decodedXml string, which is a regular XML string.

The SecurityElement.Escape method can handle not only XML-encoded characters but also other special characters used in XML, such as &amp; (for the ampersand character "&") and &quot; (for the double-quote character "). When you use SecurityElement.Escape, it ensures that the resulting string is a valid XML string with all special characters properly escaped.

Examples

  1. "C# decode XML-encoded string using XElement"

    string xmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; string decodedString = XElement.Parse("<root>" + xmlEncodedString + "</root>").Value;

    Description: Decodes an XML-encoded string using XElement.Parse.

  2. "C# decode HTML-encoded string to XML"

    using System.Net; string htmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; string decodedString = WebUtility.HtmlDecode(htmlEncodedString);

    Description: Decodes an HTML-encoded string to XML using WebUtility.HtmlDecode.

  3. "C# decode URL-encoded string to XML"

    using System.Web; string urlEncodedString = "%3Croot%3E%3Celement%3EHello%3C/element%3E%3C/root%3E"; string decodedString = HttpUtility.UrlDecode(urlEncodedString);

    Description: Decodes a URL-encoded string to XML using HttpUtility.UrlDecode.

  4. "C# decode Base64-encoded string to XML"

    string base64EncodedString = "PHJvb3Q+PGVsZW1lbnQ+SGVsbG88L2VsZW1lbnQ+PC9yb290Pg=="; byte[] bytes = Convert.FromBase64String(base64EncodedString); string decodedString = Encoding.UTF8.GetString(bytes);

    Description: Decodes a Base64-encoded string to XML.

  5. "C# decode escaped XML string"

    string escapedXmlString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; string decodedString = System.Text.RegularExpressions.Regex.Unescape(escapedXmlString);

    Description: Decodes an escaped XML string using Regex.Unescape.

  6. "C# decode XML string from UTF-8 byte array"

    string xmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; byte[] bytes = Encoding.UTF8.GetBytes(xmlEncodedString); string decodedString = Encoding.UTF8.GetString(bytes);

    Description: Decodes an XML-encoded string from a UTF-8 byte array.

  7. "C# decode XML string using XmlReader"

    using System.IO; using System.Xml; string xmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; using (XmlReader reader = XmlReader.Create(new StringReader(xmlEncodedString))) { reader.ReadToFollowing("element"); string decodedString = reader.ReadElementContentAsString(); }

    Description: Decodes an XML-encoded string using XmlReader.

  8. "C# decode XML string using XmlDocument"

    using System.Xml; string xmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; var xmlDoc = new XmlDocument(); xmlDoc.LoadXml(xmlEncodedString); string decodedString = xmlDoc.InnerText;

    Description: Decodes an XML-encoded string using XmlDocument.

  9. "C# decode XML string using XDocument"

    using System.Xml.Linq; string xmlEncodedString = "&lt;root&gt;&lt;element&gt;Hello&lt;/element&gt;&lt;/root&gt;"; var xDoc = XDocument.Parse(xmlEncodedString); string decodedString = xDoc.Root.Value;

    Description: Decodes an XML-encoded string using XDocument.

  10. "C# decode XML string with CDATA section"

    string xmlEncodedString = "&lt;root&gt;&lt;element&gt;&lt;![CDATA[Hello]]&gt;&lt;/element&gt;&lt;/root&gt;"; var xDoc = XDocument.Parse(xmlEncodedString); string decodedString = xDoc.Root.Element("element").Value;

    Description: Decodes an XML-encoded string with a CDATA section using XDocument.

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