Sending File from one computer to another using C#

     
In this article we are going to see how to send a file from one computer to another using TCP protocol.
now in this example i am taking my own laptop as Client and server, so IpAddress are same when you want to send to different mention the correct IpAddress and binding Port Number.

For Server Side Code 
C# :

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Net.Sockets;

using System.Net;

using System.IO;

namespace RServer

{

    public partial class Form1 : Form

    {

        public delegate void Add(String Message);

        Add mess;

        public voidAddMessage(String Message)

        {

            listBox1.Items.Add(Message);

        }

        public Form1()

        {

            InitializeComponent();

            mess = new Add(AddMessage);

        }

        private voidbutton1_Click(object sender, EventArgs e)

        {

            System.Threading.ThreadPool.QueueUserWorkItem(StartTcpServer);

        }

        public  string GetIP()

        {

            string name = Dns.GetHostName();

            IPHostEntry entry= Dns.GetHostEntry(name);

            IPAddress[] addr = entry.AddressList;

            if (addr[1].ToString().Split('.').Length == 4)

            {

                return addr[1].ToString();

            }

            return addr[2].ToString();

        }

        public void Message(string data)

        {

            listBox1.BeginInvoke(mess, data);

        }

        public  void StartTcpServer(objectstate)

        {

            TcpListener filelistener = new TcpListener(IPAddress.Parse(GetIP()),8085);

            filelistener.Start();

            TcpClient client = filelistener.AcceptTcpClient();

            Message("Client connection accepted from :" + client.Client.RemoteEndPoint + ".");

            byte []buffer = new byte[1500];

            int bytesread = 1;

            StreamWriter writer = newStreamWriter("D:\\sample.rar");

            while (bytesread > 0)

            {

                bytesread= client.GetStream().Read(buffer, 0, buffer.Length);

                if (bytesread == 0)

                    break;

                writer.BaseStream.Write(buffer, 0, buffer.Length);

                Message(bytesread + " Received. ");

            }

            writer.Close();

        }

    }

}

For Client Side Code:
C# :

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Net.Sockets;

using System.Net;

namespace RServer

{

    public partial class Form3 : Form

    {

        public Form3()

        {

            InitializeComponent();

        }

        public string GetIP()

        {

            string name = Dns.GetHostName();

            IPHostEntry entry = Dns.GetHostEntry(name);

            IPAddress[] addr = entry.AddressList;

            if (addr[1].ToString().Split('.').Length == 4)

            {

                return addr[1].ToString();

            }

            return addr[2].ToString();

        }

        private voidbutton1_Click(object sender, EventArgs e)

        {

            try

            {

                StreamReader sr = new StreamReader(textBox1.Text);

                TcpClient tcpClient = new TcpClient();

                tcpClient.Connect(new IPEndPoint(IPAddress.Parse(GetIP()), 8085));

                byte[] buffer = newbyte[1500];

                long bytesSent = 0;

                while (bytesSent < sr.BaseStream.Length)

                {

                    int bytesRead = sr.BaseStream.Read(buffer, 0, 1500);

                    tcpClient.GetStream().Write(buffer, 0, bytesRead);

                    Message(bytesRead + " bytes sent.");

                    bytesSent += bytesRead;

                }

                tcpClient.Close();

                Message("finished");

                Console.ReadLine();

            }

            catch (Exceptionex)

            {

                MessageBox.Show(ex.Message);

            }

        }

        public void Message(string data)

        {

            listBox1.Items.Add(data);

        }

        private voidbutton2_Click(object sender, EventArgs e)

        {

            OpenFileDialog op = newOpenFileDialog();

            op.ShowDialog();

            textBox1.Text = op.FileName;

        }

    }

}

Output :
Server

Client

I Hope from this article you can learn how to send file from computer to another.

Bugs Present in CPU

C# - Create a Chat Application Client - Server

In this article we are going to see how to create a chat application using C#, for this we have to create a two projects in Console Applications one for client and another for server.

please dis-connet the internet while checking with this code.

Server:

First Let we see about Server, Which will get the request from client .Get the IP address of the Server Machine and Get the username and Port at which server has to watch for request.Socket is the used to receive and accept the request in TCP as stream.

C# code:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.Threading;

namespace ChatServer

{

    class Program

    {

        static Socket soc;

        static Socket acc;

        static int port = 9000;

        static IPAddressip;

        static Thread rec;

        static string name;

        static string GetIp()

        {

            string hostname = Dns.GetHostName();

            IPHostEntry ipentry = Dns.GetHostEntry(hostname);

            IPAddress[] addr = ipentry.AddressList;

            return addr[addr.Length - 1].ToString();

        }

        static void RecV()

        {

            while (true)

            {

                Thread.Sleep(500);

                byte[] buffer = newbyte[300];

                int rece = acc.Receive(buffer, 0, buffer.Length, 0);

                Array.Resize(refbuffer, rece);

                Console.WriteLine(Encoding.Default.GetString(buffer));

            }

        }

        static void Main(string[] args)

        {

            rec = new Thread(RecV);

            Console.WriteLine("Your Local Ip is " + GetIp());

            Console.WriteLine("Please enter your name");

            name = Console.ReadLine();

            Console.WriteLine("Please enter HostPort");

            string prt = Console.ReadLine();

            try

            {

                port = Convert.ToInt32(prt);

            }

            catch

            {

                port = 9000;

            }

            ip = IPAddress.Parse(GetIp());

            soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            soc.Bind(new IPEndPoint(ip, port));

            soc.Listen(0);

            acc = soc.Accept();

            rec.Start();

            while (true)

            {

                byte[] sdata = Encoding.Default.GetBytes("<"+name+">"+Console.ReadLine());

                acc.Send(sdata, 0, sdata.Length, 0);

            }

        }

    }

}

Client :

Now we see for the client same steps , but difference is here is send is the request we are make a separate thread for see the message from server.

C# Code:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.Threading;

namespace ChatClient

{

    class Program

    {

        static string name;

        static int port = 9000;

        static IPAddressip;

        static Socket soc;

        static Thread rec;

        static string GetIp()

        {

            string hostname = Dns.GetHostName();

            IPHostEntry ipentry = Dns.GetHostEntry(hostname);

            IPAddress[] addr = ipentry.AddressList;

            return addr[addr.Length - 1].ToString();

        }

        static void RecV()

        {

            while (true)

            {

                Thread.Sleep(500);

                byte[] buffer = newbyte[300];

                int rece = soc.Receive(buffer, 0, buffer.Length, 0);

                Array.Resize(refbuffer, rece);

                Console.WriteLine(Encoding.Default.GetString(buffer));

            }

        }

       

        static void Main(string[] args)

        {

            rec = new Thread(RecV);

            Console.WriteLine("Please enter your name");

            name = Console.ReadLine();

            ip = IPAddress.Parse(GetIp());

            Console.WriteLine("Please enter HostPort");

            string prt = Console.ReadLine();

            try

            {

                port = Convert.ToInt32(prt);

            }

            catch

            {

                port = 9000;

            }

            soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            soc.Connect(new IPEndPoint(ip, port));

            rec.Start();

            byte[] data = Encoding.Default.GetBytes("<" + name + "> Connected");

            soc.Send(data, 0, data.Length, 0);

            while (soc.Connected)

            {

                byte[] sdata = Encoding.Default.GetBytes("<" + name + ">"+ Console.ReadLine());

                soc.Send(sdata, 0, sdata.Length, 0);

            }

        }

    }

}

Output:

Server ;

Client :

From this article , I hope you can learn how to create a sample chat application.

WPF Multi Touch - Rotate the World

In this article we are going to see how to create a 3D multi touch example, this example we are going to create a rotatable 3D world with touch as well as in Mouse.For this we have to use StoryBoard for animation, and ViewPort3D for 3D support of image.

<Window x:Class="CSWPF3DMultiTouch.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

              xmlns:shapes="clr-namespace:CSWPF3DMultiTouch"

        Title="Touch 3D World">

    <Window.Resources>

        <Storyboard x:Key="sb">

            <DoubleAnimation Storyboard.TargetName="InfoScale" Storyboard.TargetProperty="ScaleX" From="0" To="1">

                <DoubleAnimation.EasingFunction>

                    <BounceEase/>

                </DoubleAnimation.EasingFunction>

            </DoubleAnimation>

            <DoubleAnimation Storyboard.TargetName="InfoScale"Storyboard.TargetProperty="ScaleY" From="0" To="1">

                <DoubleAnimation.EasingFunction>

                    <BounceEase/>

                </DoubleAnimation.EasingFunction>

            </DoubleAnimation>

        </Storyboard>

    </Window.Resources>

        <Grid Background="Black"  IsManipulationEnabled="True"ManipulationDelta="OnManipulationDelta" TouchUp="OnTouchUp" MouseLeftButtonDown="Grid_MouseLeftButtonDown" MouseMove="Grid_MouseMove" MouseLeftButtonUp="Grid_MouseLeftButtonUp" MouseWheel="Grid_MouseWheel">

              <Viewport3D x:Name="viewport">

                     <Viewport3D.Camera>

                           <PerspectiveCamera Position="0,0,5"/>

                     </Viewport3D.Camera>

                     <ModelVisual3D x:Name="Light">

                           <ModelVisual3D.Content>

                                  <Model3DGroup>

                                         <AmbientLight x:Name="light" Color="White"/>

                                  </Model3DGroup>

                           </ModelVisual3D.Content>

                     </ModelVisual3D>

                     <shapes:Sphere x:Name="earth">

                           <shapes:Sphere.Material>                              

                                  <DiffuseMaterial>

                                         <DiffuseMaterial.Brush>

                                                <ImageBrush ImageSource="Map.png"/>

                                         </DiffuseMaterial.Brush>

                                  </DiffuseMaterial>

                           </shapes:Sphere.Material>

                           <shapes:Sphere.Transform>

                                  <Transform3DGroup x:Name="transformGroup">

                                         <ScaleTransform3D x:Name="scaleTransform"/>

                                  </Transform3DGroup>

                           </shapes:Sphere.Transform>

                     </shapes:Sphere>                

              </Viewport3D>

       

              <Rectangle Fill="Transparent"/>

        <CheckBox x:Name="MouseSimulationCheckBox" Content="Allow mouse simulation" Foreground="RosyBrown" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10"/>

        <TextBlock x:Name="InfoTextBox" HorizontalAlignment="Center" VerticalAlignment="Top" Margin="10" FontSize="24" Foreground="RosyBrown" FontWeight="Bold" RenderTransformOrigin="0.5,0.5">

            <TextBlock.RenderTransform>

                <ScaleTransform x:Name="InfoScale"/>

            </TextBlock.RenderTransform>

        </TextBlock>

        <Line x:Name="TouchLine" Stroke="Red" StrokeThickness="2"/>

    </Grid>

</Window>

using System.Collections.Generic;

using System.Windows;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Media.Media3D;

namespace CSWPF3DMultiTouch

{

       public partial class MainWindow : Window

       {

              private double_angleBuffer = 0d;

              private static int _imageWidth = 1995;

              private static int _imageHeight = 2051;

              private List<DataCenter> _dataCenters;

              private bool_isMouseDown;

        private Point_startPoint;

              public MainWindow()

              {

                     InitializeComponent();

                     this._dataCenters = newList<DataCenter>(6);

            this._dataCenters.Add(newDataCenter() { Name = "Chicago", Bound = new Rect(328, 790, 20, 20) });

            this._dataCenters.Add(newDataCenter() { Name = "San Antonio", Bound = new Rect(285, 873, 20, 20) });

            this._dataCenters.Add(newDataCenter() { Name = "Amsterdam", Bound = new Rect(856, 711, 20, 20) });

            this._dataCenters.Add(newDataCenter() { Name = "Dublin", Bound = new Rect(796, 703, 20, 20) });

            this._dataCenters.Add(newDataCenter() { Name = "Hong Kong", Bound = new Rect(1454, 923, 20, 20) });

            this._dataCenters.Add(newDataCenter() { Name = "Singapore", Bound = new Rect(1406, 1040, 20, 20) });

            Touch.FrameReported += new TouchFrameEventHandler(Touch_FrameReported);

              }

              private voidOnManipulationDelta(object sender, ManipulationDeltaEventArgs e)

              {

                     this.scaleTransform.ScaleX *= e.DeltaManipulation.Scale.X;

                     this.scaleTransform.ScaleY *= e.DeltaManipulation.Scale.Y;

                     this.scaleTransform.ScaleZ *= e.DeltaManipulation.Scale.X;

                     this._angleBuffer++;

                     if (_angleBuffer >= 0)

                     {

                           Vector delta = e.DeltaManipulation.Translation;

                this.RotateEarth(delta);

            }

            e.Handled = true;

              }

        private voidRotateEarth(Vector delta)

        {

            if (delta.X != 0 || delta.Y != 0)

            {

                Vector3D vOriginal = new Vector3D(-delta.X, delta.Y, 0d);

                Vector3D vZ = new Vector3D(0, 0, 1);

                Vector3D perpendicular = Vector3D.CrossProduct(vOriginal, vZ);

                RotateTransform3Drotate = new RotateTransform3D();

                QuaternionRotation3D quatenion = new QuaternionRotation3D();

                quatenion.Quaternion = new Quaternion(perpendicular, 3);

                rotate.Rotation = quatenion;

                this.transformGroup.Children.Add(rotate);

                this._angleBuffer = 0;

            }

        }

              private voidOnTouchUp(object sender, TouchEventArgs e)

              {           

            DoHitTest(e.GetTouchPoint(this.viewport).Position);

              }

        private voidDoHitTest(Point point)

        {

            VisualTreeHelper.HitTest(this.viewport, null, new HitTestResultCallback(target =>

            {

                RayMeshGeometry3DHitTestResult result = target as RayMeshGeometry3DHitTestResult;

                if (result != null)

                {

                    Pointp1 = result.MeshHit.TextureCoordinates[result.VertexIndex1];

                    Point p2 = result.MeshHit.TextureCoordinates[result.VertexIndex2];

                    Point p3 = result.MeshHit.TextureCoordinates[result.VertexIndex3];

                    double hitX = p1.X * result.VertexWeight1 + p2.X * result.VertexWeight2 + p3.X * result.VertexWeight3;

                    double hitY = p1.Y * result.VertexWeight1 + p2.Y * result.VertexWeight2 + p3.Y * result.VertexWeight3;

                    Point pointHit = new Point(hitX * _imageWidth, hitY * _imageHeight);

                    foreach (DataCenterdc in this._dataCenters)

                    {

                        if (dc.Bound.Contains(pointHit))

                        {

                            this.InfoTextBox.Text = "You've just touched the " + dc.Name + " data center!";

                            Storyboardsb = this.Resources["sb"] as Storyboard;

                            if (sb != null)

                            {

                                sb.Begin();

                            }

                            return HitTestResultBehavior.Stop;

                        }

                    }

                }

                return HitTestResultBehavior.Continue;

            }), new PointHitTestParameters(point));

        }

        void Touch_FrameReported(objectsender, TouchFrameEventArgs e)

        {

            var touchPoints = e.GetTouchPoints(this.viewport);

            if (touchPoints.Count >= 2 && touchPoints[0].Action == TouchAction.Up)

            {

                this.TouchLine.X1 = touchPoints[0].Position.X;

                this.TouchLine.X2 = touchPoints[1].Position.X;

                this.TouchLine.Y1 = touchPoints[0].Position.Y;

                this.TouchLine.Y2 = touchPoints[1].Position.Y;

            }

        }

              private voidGrid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

              {

                     this._isMouseDown = true;

            this._startPoint = e.GetPosition(this.viewport);

              }

              private voidGrid_MouseMove(object sender, MouseEventArgs e)

              {

                     if (this._isMouseDown && this.MouseSimulationCheckBox.IsChecked.Value)

                     {

                this._angleBuffer++;

                if (_angleBuffer >= 0)

                {

                    Point currentPoint = e.GetPosition(this.viewport);

                    Vector delta = new Vector(currentPoint.X - this._startPoint.X, currentPoint.Y - this._startPoint.Y);

                    RotateEarth(delta);

                }

                     }

              }

              private voidGrid_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

              {

                     this._isMouseDown = false;

            if (this.MouseSimulationCheckBox.IsChecked.Value)

            {

                this.DoHitTest(e.GetPosition(this.viewport));

            }

              }

        private voidGrid_MouseWheel(object sender, MouseWheelEventArgs e)

        {

            if (this.MouseSimulationCheckBox.IsChecked.Value)

            {

                double delta = e.Delta > 0 ? 1.2 : 0.8;

                this.scaleTransform.ScaleX *= delta;

                this.scaleTransform.ScaleY *= delta;

                this.scaleTransform.ScaleZ *= delta;

            }

        }

       }

}

 From this article i hope you will learn how to create a 3D view.