Method 1: Using HttpUtility.HtmlDecode Method
To convert HTML encoded strings to normal strings in C# by using the HttpUtility.HtmlDecode
method. This method is available in the System.Web
namespace and can be used to decode any HTML-encoded string.
using System;
using System.Web;
namespace HtmlDecodeExample
{
class Program
{
static void Main(string[] args)
{
string encodedString = "This is an <example> of an HTML encoded string.";
string decodedString = HttpUtility.HtmlDecode(encodedString);
Console.WriteLine(decodedString);
}
}
}
Output:
This is an <example> of an HTML encoded string.
In this method, we first define the encoded string, which contains HTML-encoded characters. We then use the HttpUtility.HtmlDecode
method to decode the string, which returns a normal string. Finally, we print the decoded string to the console.
Method 2: Using Regex.Replace Method
The second method to convert HTML encoded strings to normal strings in C# is by using the Regex.Replace
method. This method is available in the System.Text.RegularExpressions
namespace and can be used to replace patterns in a string.
using System;
using System.Text.RegularExpressions;
namespace RegexReplaceExample
{
class Program
{
static void Main(string[] args)
{
string encodedString = "This is an <example> of an HTML encoded string.";
string decodedString = Regex.Replace(encodedString, @"<|>", m => m.Value == "<" ? "<" : ">");
Console.WriteLine(decodedString);
}
}
}
Output:
This is an <example> of an HTML encoded string.
In this method, we first define the encoded string, which contains HTML encoded characters. We then use the Regex.Replace
method to replace the HTML encoded characters with their normal counterparts. The regular expression @"<|>" matches both the "<" and ">" HTML entities. The lambda function m => m.Value == "<" ? "<" : ">" checks if the matched value is "<", in which case it replaces it with "<", otherwise it replaces it with ">". Finally, we print the decoded string to the console.
Method 3: Using HtmlAgilityPack
The third method to convert HTML encoded strings to normal strings in C# is by using the HtmlAgilityPack
library. This library provides a set of classes for parsing and manipulating HTML documents.
using System;
using HtmlAgilityPack;
namespace HtmlAgilityPackExample
{
class Program
{
static void Main(string[] args)
{
string encodedString = "This is an <example> of an HTML encoded string.";
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(encodedString);
string decodedString = htmlDoc.DocumentNode.InnerText;
Console.WriteLine(decodedString);
}
}
}
Output:
This is an <example> of an HTML encoded string.
In this method, we first define the encoded string, which contains HTML-encoded characters. We then create a new instance of the HtmlDocument
class from the HtmlAgilityPack
library. We load the encoded string into the HtmlDocument
object using the LoadHtml
method. Finally, we use the InnerText
property of the DocumentNode
object to retrieve the decoded string. The InnerText property returns only the text content of the HTML document, without any HTML tags or attributes. We then print the decoded string to the console.
Method 4: Using XmlDocument Class
The fourth method to convert HTML encoded strings to normal strings in C# is by using the XmlDocument
class. This class is available in the System.Xml
namespace and provides a way to load, manipulate, and save XML documents.
using System;
using System.Xml;
namespace XmlDocumentExample
{
class Program
{
static void Main(string[] args)
{
string encodedString = "This is an <example> of an HTML encoded string.";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml("<root>" + encodedString + "</root>");
string decodedString = xmlDoc.InnerText;
Console.WriteLine(decodedString);
}
}
}
Output:
This is an <example> of an HTML encoded string.
In this method, we first define the encoded string, which contains HTML-encoded characters. We then create a new instance of the XmlDocument
class from the System.Xml
namespace. We load the encoded string into the XmlDocument
object using the LoadXml
method. We wrap the encoded string in a root element to make it a valid XML document. Finally, we use the InnerText
property of the XmlDocument
object to retrieve the decoded string. We then print the decoded string to the console.
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