C#

using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
using System.Reflection;

        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        static extern Boolean GetCommModemStatus(SafeFileHandle hFile, ref UInt32 Status);

        const UInt32 MS_CTS_ON = 0x0010;
        const UInt32 MS_DSR_ON = 0x0020;
        const UInt32 MS_RING_ON = 0x0040;
        const UInt32 MS_RLSD_ON = 0x0080;

        private void ShowPinStates(System.IO.Ports.SerialPort serialPort)
        {
            UInt32 Status = 0;
            Boolean CTS = false;
            Boolean DSR = false;
            Boolean DCD = false;
            Boolean RI  = false;

            if (serialPort == null) return;
            if (serialPort.IsOpen)
            {
                object baseStream = serialPort.BaseStream;
                Type baseStreamType = baseStream.GetType();

                // Get the Win32 file handle for the port
                SafeFileHandle portFileHandle = (SafeFileHandle)baseStreamType.GetField("_handle", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(baseStream);

                if (GetCommModemStatus(portFileHandle, ref Status))
                {
                    CTS = ((Status & MS_CTS_ON) == MS_CTS_ON);
                    DSR = ((Status & MS_DSR_ON) == MS_DSR_ON));
                    DCD = ((Status & MS_RLSD_ON) == MS_RLSD_ON));
                    RI  = ((Status & MS_RING_ON) == MS_RING_ON));
                    //Do something with the detected signals
                }
            }
        }

<br />
<br />
        class neuron<br />
        {<br />
            //public dentrit[] dent = new dentrit[nron];<br />
            //public double[,] w = new double[lay,nron];// ilk katmanda w yok dikkat<br />
            public double [] dentw = new double[nron];<br />
            public double bias,hata,delta ;<br />
          <br />
            public double[] input = new double[nron ];<br />
            public double output ;<br />
            public int[] sbaglanti = new int[nron];<br />
            public int[] sbagk = new int[nron];<br />
            public int[] obaglanti = new int[nron];<br />
            public int numara;<br />
            public int dents;//dentrit sayısı<br />
            public int oid,sid;<br />
      <br />
            ~neuron() { }<br />
<br />
        }<br />
        class layer {<br />
           public neuron[] noron = new neuron[nron];<br />
<br />
            public layer()<br />
            {<br />
                for (int index = 0; index < noron.Length; index++)<br />
                {<br />
                    noron[index] = new neuron();<br />
                }<br />
            <br />
            }<br />
<br />
            ~layer(){}<br />
        <br />
        }<br />
        class net {<br />
            <br />
          public   int ban, hen;<br />
            public layer[] layers = new layer[lay];<br />
            public net()<br />
            {<br />
                for (int index = 0; index < layers.Length; index++)<br />
                {<br />
                    layers[index] = new layer();<br />
<br />
                }<br />
<br />
            }<br />
<br />
            ~net(){}<br />
        <br />
        }<br />
       <br />
        net networks;<br />
<br />

protected void lnkSelect_Click(object sender, EventArgs e)
    {
        foreach (ListViewDataItem lvItem in lstView.Items)
        {
            CheckBox check = (CheckBox)lvItem.FindControl("chksel");       
            if (check != null && check.Checked)
            {
                  
               check.Checked = true;
            }
        }       
    }