Convert Special characters into Html Encoded characters

Question

I want to converter all special characters into Html encoded characters. I found many post related to used HttpUtility.HtmlEncode(); , but it's only convert some of special characters like "&", "<", ">".

Is there any way to convert all special character like "š","Ø","þ","›","Ù" into Html entity using C# or javascript?

Answer 1

The Microsoft AntiXss Library can accomplish this;

string p = Microsoft.Security.Application.Encoder.HtmlEncode("aaa <b>sdf</b> š,Ø,þ,›,Ù", true);
Response.Write(p);

For

aaa <b>sdf</b> š,Ø,þ,›,Ù

Answer 2

you can also do as follows without AntiXSS

public static string HtmlEncode (string text)
{
    string result;
    using (StringWriter sw = new StringWriter())
    {
        var x = new HtmlTextWriter(sw);
        x.WriteEncodedText(text);
        result = sw.ToString();
    }
    return result;

}