C#:tcpclient (client) and TCPServer (service side)

Service side:

Using System; Using System.Collections.Generic; Using System.Linq; Using System.Text; Using System.Windows; Using System.Windows.Controls; Using System.Windows.Data; Using System.Windows.Documents; Using System.Windows.Input; Using System.Windows.Media; Using System.Windows.Media.Imaging; Using System.Windows.Shapes; Using System.IO; Using System.Net.Sockets; Using System.Net; namespace Pictureclient {///<summary>///interaction logic for Pictureclientwindow.xaml///</summary> Publ IC partial class Pictureclientwindow:window {Private Const int buffersize = 8192; public Pictureclientwindow () {Initia Lizecomponent (); Private TcpClient Connecttoserver () {tcpclient client = new TcpClient (); Iphostentry host = Dns.gethostentry (Properties.Settings.Default.Server); var address = (from h in host.) AddressList where h.addressfamily = = AddressFamily.InterNetwork Select h). A (); Client. Connect (address. ToString (), Properties.Settings.Default.ServerPort); return client; } private void Buttongetpicturelist_click (object sender, RoutedEventArgs e) {//send data TcpClient client = Connecttoserver (); NetworkStream clientstream = client. GetStream (); String request = "LIST"; byte[] Requestbuffer = Encoding.ASCII.GetBytes (request); Clientstream.write (requestbuffer, 0, requestbuffer.length); Read response byte[] Responsebuffer = new Byte[buffersize]; MemoryStream memstream = new MemoryStream (); int bytesread = 0; do {bytesread = Clientstream.read (responsebuffer, 0, buffersize); Memstream.write (Responsebuffer, 0, BytesRead); (Bytesread > 0); Clientstream.close (); Client. Close (); byte[] buffer = Memstream.getbuffer (); String response = Encoding.ASCII.GetString (buffer); This. DataContext = Response. Split (': '); } private void Buttongetpicture_click (object sender, RoutedEventArgs e) {tcpclient client = Connecttoserver (); NetworkStream clientstream = client. GetStream (); String request = "FILE:" + this.listBoxFiles.SelectedItem.ToString (); Byte[] RequestbuffER = Encoding.ASCII.GetBytes (request); Clientstream.write (requestbuffer, 0, requestbuffer.length); byte[] Responsebuffer = new Byte[buffersize]; MemoryStream memstream = new MemoryStream (); int bytesread = 0; do {bytesread = Clientstream.read (responsebuffer, 0, buffersize); Memstream.write (Responsebuffer, 0, BytesRead); (Bytesread > 0); Clientstream.close (); Client. Close (); if (Memstream.getbuffer (). Length!= 0) {bitmapimage bitmapimage = new BitmapImage (); Memstream.seek (0, Seekorigin.begin); Bitmapimage.begininit (); Bitmapimage.streamsource = Memstream; Bitmapimage.endinit (); Picturebox.source = BitmapImage; } } } }

Client:

Using System; Using System.Collections.Generic; Using System.Linq; Using System.Text; Using System.Net; Using System.Net.Sockets; Using System.IO; namespace Pictureserver {Internal static class Picturehelper {internal static ienumerable<string> Getfilelist () { Return to file in Directory.GetFiles (Properties.Settings.Default.PictureDirectory) Select Path.getfilename (file); } internal Static byte[] Getfilelistbytes () {try {ienumerable<string> files = picturehelper.getfilelist (); StringBuilder responsemessage = new StringBuilder (); foreach (string s in files) {responsemessage.append (s); Responsemessage.append (":");} Return Encoding.ASCII.GetBytes (Responsemessage.tostring ()); The catch (System.Exception ex) {Console.WriteLine (ex). message); Throw Class Program {static void Main (string[] args) {TcpListener listener = new TcpListener (Ipaddress.any, PROPERTIES.S Ettings. Default.port); Listener. Start (); Console.WriteLine ("Server running ..."); while (true) {const int bUffersize = 8192; TcpClient client = listener. AcceptTcpClient (); NetworkStream clientstream = client. GetStream (); byte[] buffer = new Byte[buffersize]; int readbytes = 0; Readbytes = clientstream.read (buffer, 0, buffersize); String request = Encoding.ASCII.GetString (buffer). Substring (0, readbytes); if (request). StartsWith ("LIST", stringcomparison.ordinal)) {byte[] Responsebuffer = Picturehelper.getfilelistbytes (); Clientstream.write (responsebuffer, 0, responsebuffer.length); else if (request. StartsWith ("FILE", stringcomparison.ordinal)) {string[] requestmessage = Request. Split (': '); string filename = requestmessage[1]; try {byte[] data = File.readallbytes (Path.Combine (Properties.Settings.Default.PictureDirectory, filename)); Clientstream.write (data, 0, data.) Length); catch (IOException e) {Console.WriteLine ("IOException:" + e.message);} catch (WebException e) {Console.WriteLine ("WebException:" + e.message);} catch (Exception e) {Console.WriteLine ("Other Exception:" + e.messAge); } clientstream.close (); } } } }

Attach client WPF code:

<window x:class= "Pictureclient.pictureclientwindow" xmlns= "http://schemas.microsoft.com/winfx/2006/xaml/ Presentation "xmlns:x=" Http://schemas.microsoft.com/winfx/2006/xaml "title=" Picture Client "height=" 329 "width=" 616 "> <grid name=" pictureclient "> <Grid.ColumnDefinitions> <columndefinition width=" 19* "/> < ColumnDefinition width= "563*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <rowdefinition height= "85*"/> <rowdefinition height= "21*"/> <rowdefinition height= "13*"/> <RowDefinition "Height=" 23* "/> <rowdefinition height=" 29* "/> <rowdefinition height=" 120* "/> </Grid.RowDefinitions> < Image x:name= "PictureBox" grid.rowspan= "a" margin= "6,0,6,10" grid.columnspan= "a"/> <button Horizontalalignment= "Right" margin= "0,21,18,40" name= "buttongetpicturelist" width= "click=" Buttongetpicturelist_click "grid.column=" 1 ">get picture list</button> <button grid.row=" 5 "Height=" "Ho"Rizontalalignment= "Right" margin= "0,0,17,10" name= "Buttongetpicture" verticalalignment= "Bottom" width= "169" Buttongetpicture_click "grid.column=" 1 ">get picture</button> <listbox itemssource=" {Binding} " grid.rowspan= "6" horizontalalignment= "right" margin= "0,54,19,47" name= "Listboxfiles" width= "167" Grid.Column= "1"/ > </Grid> </Window>