C#

script type="text/javascript">
        $(function () {
            $("#SelectAll").click(function () {
                var $this = $(this);
                $this.toggleClass('SelectAll');
                if ($this.hasClass('SelectAll')) {
                    $this.text('DeselectAll');
                    $this.val('DeselectAll');

                    var ischecked = true;
                } else {
                    $this.text('SelectAll');
                    $this.val('SelectAll');
                    var ischecked = false;
                }
            });
        });
        </script>

using Newtonsoft.Json;
using System;
using System.Windows.Forms;
using System.Xml;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        
        private void Form1_Load(object sender, EventArgs e)
        {
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(" <student>\r\n    <student_name>Preethi\r\n    <ssn>45679\r\n    <course>Electronics and communication\r\n    <address>\r\n      <line_1>#1, 6th cross\r\n      <line_2>Victoria Layout\r\n      <city>Bangalore\r\n      <country>India\r\n    </address>\r\n  \r\n");
            string jsonText = JsonConvert.SerializeXmlNode(doc);
            //Console.WriteLine(jsonText);
            MessageBox.Show(jsonText);
        }
    }
}

namespace XXX
{
    public partial class Form1 : Form
    {
        [DllImport ("user32.dll")]
        
        static extern void mouse_event(uint dwFlags);
        public Form1()
        {
            InitializeComponent();
        }

private void keyPressAction(object sender, KeyEventArgs e)
{
    e.SuppressKeyPress = true;
    System.Threading.Thread.Sleep(300);
    Cursor.Position = new System.Drawing.Point(1000, 0);
    mouse_event(0x002 | 0x004);