using System;

using System.IO;

using System.Xml;

using System.Web;

using System.Linq;

​

public class Sample

{

​

  public static void Main()

  {

     string xmlString ="<\noddfs2edfe12321e2Care PlanO2e1drder Detail < 7 <anode2>>";

     //Console.WriteLine(XmlConvert.VerifyXmlChars(xmlString));

     string output = System.Web.Security.AntiXss.AntiXssEncoder.XmlEncode(xmlString);

     Console.WriteLine(output);

    // var validXmlChars = xmlString.Where(ch => XmlConvert.IsXmlChar(ch)?).ToArray();

    // Console.WriteLine(new string(validXmlChars));

     string name3 = HttpUtility.HtmlEncode("Care PlanOrder Detail < 7");

     Console.WriteLine("Encoded name: " + name3);

     Console.WriteLine("Decoded name: " + HttpUtility.HtmlDecode(name3));

​

     string name1 = XmlConvert.EncodeName("Care PlanOrder Detail< 7");

     Console.WriteLine("Encoded name: " + name1);

     Console.WriteLine("Decoded name: " + XmlConvert.DecodeName(name1));

  }

    public static bool IsValidXmlString(string xmlString)

    {

        try

        {

            XmlConvert.VerifyXmlChars(xmlString);

            Console.WriteLine(xmlString);

            return true;

        }

        catch

        {

            return false;

        }

    }

​

}