C# HtmlDecode Specific tags only

Question

I have a large htmlencoded string and i want decode only specific whitelisted html tags.

Is there a way to do this in c#, WebUtility.HtmlDecode() decodes everything.

Answer 1

You could do something like this

public string DecodeSpecificTags(List whiteListedTagNames,string encodedInput)
{
    String regex="";
    foreach(string s in whiteListedTagNames)
    {
        regex="<"+@"\s*/?\s*"+s+".*?"+">";
        encodedInput=Regex.Replace(encodedInput,regex);
    }
    return encodedInput;
}