C#

public partial class Form1 : Form
   {
        public Form1()
        {
            InitializeComponent();
            //sort colum header
            this.dataGridView1.VirtualMode = false;
            this.dataGridView1.SortCompare += new System.Windows.Forms.DataGridViewSortCompareEventHandler(this.dataGridView1_SortCompare);

            dataGridView1.DataSource = CreateTable(5);

        }

        private static DataTable CreateTable(int RowCount)
        {
            DataTable tbl = new DataTable();
            tbl.Columns.Add("check1", typeof(bool));
            tbl.Columns.Add("ID", typeof(int));
            tbl.Columns.Add("Name", typeof(string));
            tbl.Columns.Add("Number", typeof(int));
            tbl.Columns.Add("Date", typeof(DateTime));
            tbl.Columns.Add("check2", typeof(bool));
            for (int i = 0; i < RowCount; i++)
                tbl.Rows.Add(new object[] { false, i, String.Format("Name{0}", i), 3 - i, DateTime.Now.AddDays(i), true });
            return tbl;
        }

        private void dataGridView1_SortCompare(object sender, DataGridViewSortCompareEventArgs e)
        {
            // Try to sort based on the cells in the current column.
            e.SortResult = System.String.Compare(
                e.CellValue1.ToString(), e.CellValue2.ToString());

            // If the cells are equal, sort based on the ID column.
            if (e.SortResult == 0 && e.Column.Name != "ID")
            {
                e.SortResult = System.String.Compare(
                    dataGridView1.Rows[e.RowIndex1].Cells["ID"].Value.ToString(),
                    dataGridView1.Rows[e.RowIndex2].Cells["ID"].Value.ToString());
            }
            e.Handled = true;
        }

    }

BillWoodruff wrote:

So, you be the judge: hack, or useful information ? Anomalous but reliable, or, anomalous and unreliable ?

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

IPAddress address = Dns.GetHostAddresses(Hostname)
    .OrderBy(a => a.AddressFamily == AddressFamily.InterNetwork ? 0 : 1) // Sort IPv4 addresses first
    .FirstOrDefault();

if (address == null) throw new InvalidOperationException($"Cannot resolve host '{Hostname}'.");

PingReply reply = ping.Send(address, 1000);

mniceguy81 wrote:

has to be 2 for IPv4.

Quote:

What should I install in the visual studio ?

namespace Osciloscope
{

    public class Osciloscope
    {
        int SCOPE_WIDTH, SCOPE_HEIGHT; // the width and the height of the osciloscope screen
        int SCOPE_HORIZONTAL_CENTER, SCOPE_VERTICAL_CENTER; //center point of the screen
        int SCAN_POINT_X; //number of points in the line (the width of the scope)
        int SCAN_POINT_Y; //as above but vertical (input...)
        int SCAN_POINT_X_NEW;
        int SCAN_POINT_Y_NEW;
        int TIMER_INTERVAL;

        Bitmap _Image;
        Graphics g;
        Pen p;

        public Osciloscope(PictureBox picture, bool Run, int Interval)
        {
            SCOPE_HEIGHT = picture.Height;
            SCOPE_WIDTH = picture.Width;
            TIMER_INTERVAL = Interval;

            //calculate mid point if the scope
            SCOPE_HORIZONTAL_CENTER = SCOPE_WIDTH / 2;
            SCOPE_VERTICAL_CENTER = SCOPE_HEIGHT / 2;
            SCAN_POINT_X = 1;// leftmost point on the screen (start scan)
            SCAN_POINT_Y = SCOPE_VERTICAL_CENTER; //the line runs in the middle of the screen

            _Image = new Bitmap(SCOPE_HEIGHT, SCOPE_WIDTH);
            Timer t = new Timer();

            t.Tick += new EventHandler(t_Tick);

            if (Run)
            {
                t.Enabled = true;
                t.Interval = TIMER_INTERVAL;
                t.Start();
            }
            else
            {
                t.Stop();
            }

        }

        void t_Tick(object sender, EventArgs e)
        {
            DrawGraph();
        }

        public Bitmap DrawGraph()
        {
            g = Graphics.FromImage(_Image);

            p = new Pen(Color.Green, 1f);

            SCAN_POINT_Y_NEW =(int) Math.Sin(SCAN_POINT_X);

            // draw the line
            g.DrawLine(p, SCAN_POINT_X, SCAN_POINT_Y, SCAN_POINT_X_NEW, SCAN_POINT_Y_NEW);

            p.Dispose();
            g.Dispose();

            SCAN_POINT_X_NEW = SCAN_POINT_X;
            SCAN_POINT_X=SCAN_POINT_X+10;

            if (SCAN_POINT_X == SCOPE_WIDTH)
                {
                    SCAN_POINT_X = 1;
                }

            return _Image;

        }
    }
}

public partial class FrmMain : Form
{
    public FrmMain()
    {
        InitializeComponent();
    }

    Osciloscope Osciloscope;
    private void FrmMain_Load(object sender, EventArgs e)
    {
        Osciloscope = new Osciloscope(Scope, true, 1);
        this.Text = Scope.Width.ToString();

        // invoke Paint event
        Scope.Invalidate();
    }

    private void Scope_Paint(object sender, PaintEventArgs e)
    {
        Scope.Image = Osciloscope.DrawGraph();
    }
}