C#

private void liveVideoToolStripMenuItem_Click(object sender, EventArgs e)<br />
    {<br />
      try<br />
        {<br />
         Control.CheckForIllegalCrossThreadCalls = false;<br />
         thvideo = new Thread(new ThreadStart(transmitVideo));<br />
                thvideo.IsBackground = true;<br />
                thvideo.Start();<br />
            }<br />
            catch (ThreadStartException thre)<br />
            {<br />
                MessageBox.Show(thre.Message);<br />
            }<br />
<br />
         <br />
        }<br />
<br />
       void transmitVideo()<br />
        {<br />
           <br />
           <br />
        /////////////////////////////////UDP //////////////////////////*/<br />
<br />
 filesndsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);<br />
<br />
 ipd = new IPEndPoint(IPAddress.Any, 7090);<br />
  filesndsock.Bind(ipd);<br />
 MulticastOption moi = new MulticastOption(IPAddress.Parse("224.0.0.1"));<br />
 filesndsock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, moi);<br />
                   <br />
 ipep = (EndPoint)ipd;<br />
  while (true)<br />
 {<br />
  try<br />
   {<br />
                 <br />
         filesndsock.ReceiveFrom(rcvbuf, ref ipep);<br />
<br />
        // Encoding and Viewing The Received Message<br />
<br />
 msg = Encoding.ASCII.GetString(rcvbuf);<br />
//Server here receive msg from client for sending file<br />
                   <br />
MessageBox.Show(msg);<br />
  try<br />
   {<br />
     thvideofile = new Thread(new ThreadStart(sendfile));<br />
     thvideofile.IsBackground = true;<br />
     thvideofile.Start();<br />
   }<br />
   catch (ThreadStartException thre)<br />
    {<br />
     MessageBox.Show(thre.Message);<br />
    }<br />
   }<br />
  catch (Exception ee)<br />
  {<br />
   MessageBox.Show(this, ee.Message, "Unknown Exception");<br />
   }<br />
 }<br />
}<br />
       void sendfile()<br />
        {<br />
<br />
            if (dlgOpen.ShowDialog() == DialogResult.OK)<br />
         {<br />
                // create the raw streams<br />
         inStream = File.OpenRead(dlgOpen.FileName);<br />
              <br />
          bufInStream = new BufferedStream(inStream);<br />
   int bytesRead = 0;<br />
<br />
 while ((bytesRead = bufInStream.Read(buf, 0, 16384)) > 0)<br />
                {<br />
                    Thread.Sleep(20);<br />
<br />
 filesndsock.SendTo(buf, bytesRead, SocketFlags.None, ipep);             <br />
                <br />
   }                    <br />
  }<br />
 MessageBox.Show("File is completely transfered");<br />
               <br />
 bufInStream.Close();<br />
 inStream.Close();<br />
               <br />
} 

PeterRoman wrote:

If I put the values 5 and 2 in the TextBoxes txtValor1 and txtValor2,
in the TextBox txtResultado appear 2 and not 2.5 .
Why?

<br />
<br />
double valor1,valor2;<br />
double resultado;<br />
<br />
valor1 = (double) txtValor1.Text;<br />
valor2 = (double) txtValor2.Text;<br />
<br />
if (opcDivide.Checked)<br />
{<br />
resultado=valor1/valor2;<br />
txtResultado.Text=Convert.ToString(resultado);<br />
}<br />
<br />
<br />

double valor1, valor2;<br />
double resultado;<br />
<br />
if (!double.TryParse(txtValor1.Text, valor1))<br />
{<br />
    valor1 = 0;<br />
}<br />
if (!double.TryParse(txtValor2.Text, valor2))<br />
{<br />
    valor2 = 0;<br />
}<br />
<br />
if (opcDivide.Checked)<br />
{<br />
    try<br />
    {<br />
        resultado = valor1/valor2;<br />
        txtResultado.Text = resultado.ToString();<br />
    }<br />
    catch (DivideByZeroException e)<br />
    {<br />
        txtResultado.Text = "Error";<br />
    }<br />
}

moon_stick wrote:

if (!double.TryParse(txtValor1.Text, valor1))
{
valor1 = 0;
}