Remove HTML Tags in C# with Unknown Tags: Easy Solution

If you're working with HTML content in C#, you may come across situations where you need to remove HTML tags from the text. This is a common task when processing user-generated content or when scraping data from web pages. However, it can be challenging to remove HTML tags when you don't know all the possible tags that may be present in the text.

Fortunately, there is an easy solution to this problem in C#. The HtmlAgilityPack library provides a powerful and flexible way to parse and manipulate HTML content. With this library, you can easily remove HTML tags from a string, even when you don't know all the possible tags that may be present.

To get started, you'll need to install the HtmlAgilityPack library using NuGet. Once you've installed the library, you can use the following code to remove all HTML tags from a string:

string input = "This is some <b>bold</b> text.";
string output = "";
HtmlDocument doc = new HtmlDocument();
foreach (HtmlNode node in doc.DocumentNode.DescendantsAndSelf())
    if (!node.HasChildNodes)
        if (node.NodeType == HtmlNodeType.Text)
            output += node.InnerText;
        else if (node.NodeType == HtmlNodeType.Element)
            output += " ";

In this example, we're using the HtmlDocument class to parse the input string as HTML. We then iterate over all the nodes in the document using the DescendantsAndSelf() method. For each node, we check if it is a text node or an element node. If it is a text node, we add its inner text to the output string. If it is an element node, we add a space to the output string.

This code will remove all HTML tags from the input string, including any unknown tags that may be present. It's a simple and effective solution that you can use in your C# projects to process HTML content.

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