network programming in net c visual basic net pdf

... to help explain the basics of database access in .NET and the concept of dataset serialization. Database programming is centered on two key strings: the connection string and structured query ... underlying protocol behind DNS 3.3.1 Writing a simple UDP client To get started, open Visual Studio NET, click New Project, then click Visual C# projects, and then Windows Application ... the NET implementation of the fundamental Internet protocols, TCP/IP and UDP 3 Working with Sockets 3.1 Introduction This chapter explains the most important aspect of network programming,

Ngày tải lên: 12/08/2014, 21:20

... them to take a crash course in HTML Internet Explorer can run in a special design mode, which is acceptable as a WYSIWYG editor The trick to accessing design mode in Internet Explorer is ... directly into the Internet Explorer window and use wellknown shortcut keys to format text (e.g., Ctrl + B, Bold; Ctrl + I, Italic; Ctrl + U, Underline) By right-clicking on Internet Explorer in ... to achieve such an effect would be to include code within the textbox declaration, such as <input type=”text” <%=someCode%>> , which is less desirable because functional code is intermixed

Ngày tải lên: 12/08/2014, 21:20

... secure than plain text. The second section describes asymmetric encryption, which is most applicable for securing data in transit. The chapter concludes with a discussion on sym- metric encryption, ... monitor network traffic at the packet level. This network traffic could include confidential or privileged information that you transmit from your computer. Security is paramount in financial transactions ... RSACryptoServiceProvider RSA; public string PublicKey; public string PrivateKey; public byte[] Encrypt(byte[] Data, string PublicKeyIn) { RSA.FromXmlString(PublicKeyIn); return RSA.Encrypt(Data,

Ngày tải lên: 12/08/2014, 21:20

... data moving quickly 11.2.1 Caching Caching can increase network performance by storing frequently accessedstatic data in a location that provides faster data return than the normalaccess time ... WebProxy class This class contains twopublic variables and two functions Create the class thus: C# public class WebProxy { public Socket clientSocket; public Form1 UserInterface; } VB.NET Public Class ... byte[1024]; int bytes = clientSocket.Receive(readIn); string clientmessage = Encoding.ASCII.GetString(readIn); clientmessage = clientmessage.Substring(0,bytes); int posHost = clientmessage.IndexOf("Host:");

Ngày tải lên: 12/08/2014, 21:20

... public static int hCall; public static int hTAPI; public static int lNumLines; public static int hLine; public static linedevcaps lpLineDevCaps; public static frmTAPI userInterface; public const ... public const int LINE_LINEDEVSTATE = 8; public const int LINE_CALLSTATE = 2; public const int LINECALLSTATE_OFFERING = 0x2; public const int LINECALLSTATE_ACCEPTED = 0x4; public const int LINECALLSTATE_DISCONNECTED ... InterfaceStatistics class IncomingPacketsDiscarded Gets the number of incoming packets discarded IncomingPacketsWithErrors Gets the number of incoming packets with errors IncomingUnknownProtocolPackets

Ngày tải lên: 12/08/2014, 21:20

... interface IComPlusServer { void ExecSQLAsync(string SQL,string strDSN); } [InterfaceQueuing(Interface="IComPlusServer")] public class ComPlusServer : ServicedComponent, IComPlusServer ... public void ExecSQLAsync(string SQL,string strDSN) { OleDbConnection DSN = new OleDbConnection(strDSN); End Interface <InterfaceQueuing([Interface] := "IComPlusServer")> _ Public ... directly execute the ExecSQLAsync method onthe ComPlusService component Instead it writes an instruction to theComPlusService queue in MSMQ, which is then read back by componentservices, which

Ngày tải lên: 12/08/2014, 21:20

... certificate can be included in the client request by adding it to the ClientCertificates collection thus: C# localhost.Service1 webservice = new localhost.Service1(); X509Certificate x509 = X509Certificate.CreateFromCertFile( ... Credentials rein-property of the Web service, such as in the following code snippet: C# localhost.Service1 webservice = new localhost.Service1(); CredentialCache cache = new CredentialCache(); Trang ... which can be obtained by calling soapsuds with the –gc switch Once the C# code can be edited, the namespace can be changed tosomething else, thereby avoiding the namespace clash Remote objects,

Ngày tải lên: 12/08/2014, 21:20

... Object = New Object(1) {} Dim ITCObject As Object ITC = Type.GetTypeFromProgID("InetCtls.Inet") ITCObject = Activator.CreateInstance(ITC) parameter(0) = CType(tbServer.Text, String) ... application programming interface 153where c:\picture.jpg is the image you wish to display 5.6 Mail application programming interface Microsoft Outlook provides an interface to applications to access ... form a custom Web browser This time, instead of includingthe COM control in the project by right-clicking on the toolbox and add-ing it there, we call the COM control directly through code This

Ngày tải lên: 12/08/2014, 21:20

... classes con-tained within the root\cimv2 namespace, load WBEMTEST, press Con-nect→→Type root\cimv2→→→Connect→→→Enum Classes→→Check Recursive→→ →→click Ok The data contained in these classes can be queried ... return Rcode; } VB.NET Public Function describeResponse(ByRef code As Integer) _ As String Trang 4 Dim Rcode As String Select Case code Case 0 : Rcode = "Success" Case 11001 : Rcode = ... to use new classes introduced in NET 2.0 Whidbey to gathersystemwide network information 13.2 IP-level network tapping Network tapping anything that runs at the IP level includes TCP/IP andUDP

Ngày tải lên: 12/08/2014, 21:20

... = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); Trang 24Accepting Connections#include <sys/types.h> #include <sys/socket.h> int connfd; struct sockaddr_in cliaddr; ... protocol level • To teach concurrent network programming in C Trang 3Relation Between Labs and LecturesTrang 4Network Programming in C: The Berkeley Sockets API4 Trang 5The Berkeley Sockets API• Now ... maximum number of connections the socket will queue up, each waiting to be accept()’ed Trang 14Connecting to a Server#include <sys/types.h> #include <sys/socket.h> if (connect(fd, addr,

Ngày tải lên: 05/09/2013, 09:57

... network”): #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> int inet_aton(const char *cp, struct in_addr *inp); And here’s a sample usage, while packing a struct ... to use AF_INET in your struct sockaddr_in and PF_INET in your call to socket() But practically speaking, you can useAF_INET everywhere And, since that’s what W Richard Stevens does in his book, ... address information struct sockaddr_in their_addr; // connector’s address information int sin_size; sockfd = socket(AF_INET, SOCK_STREAM, 0); // do some error checking! my_addr.sin_family = AF_INET;

Ngày tải lên: 19/03/2014, 13:41

... Statistics: Finding the Minimum Number of Currency Bills Required for a Given Amount Machines that process financial transactions involving cash, such as ATM machines or self-service grocery checkout ... 1Shelve in.NETUser level: principles Thinking in LINQ addresses the differences between these two by providing a set of succinct recipes arranged in several groups, including: • Basic and extended ... how you can benefit from using MoreLINQ Chapter 6: Creating Domain-Specific Languages Using LINQ • Domain-specific languages (DSLs) are gaining in popularity because they convey the intent of

Ngày tải lên: 05/11/2019, 14:30

... – CML, MML: CML, MML: c c á á c c ngôn ngôn ng ng ữ ữ bi bi ể ể u u di di ễ ễ n n công công th th ứ ứ c c ho ho á á h h ọ ọ c c , , công công th th ứ ứ c c to to á á n n h h ọ ọ c c . . C C á ... h h ọ ọ c c . . C C á á c c công công th th ứ ứ c c n n à à y y c c ó ó th th ể ể đư đư ợ ợ c c v v ẽ ẽ trên trên c c á á c c tr tr ì ì nh nh duy duy ệ ệ t t đ đ ặ ặ c c bi bi ệ ệ t t , , thông ... Object Access Protocol): giao giao th th ứ ứ c c truy truy c c ậ ậ p p đ đ ố ố i i tư tư ợ ợ ng ng đơn đơn gi gi ả ả n n , , cho cho ph ph é é p p c c á á c c ứ ứ ng ng d d ụ ụ ng ng web web c c

Ngày tải lên: 13/12/2013, 09:16

... with another Macrelated title, Beginning AppleScript (Wiley, 2004) About the Technical Reviewers Michael Trent has been programming in Objective-C since 1997—and programming Macs since well before ... computers since the introduction of the first Mac in 1984, and he wrote Programming C for the Mac as part of the Apple Press Library In 2003 Kochan wrote Programming in Objective-C (Sams, 2003), ... http://www.simpopdf.com About the Author Stephen Kochan is the author and coauthor of several bestselling titles on the C language, including Programming in C (Sams, 2004), Programming in ANSI C (Sams,

Ngày tải lên: 12/08/2014, 23:22

...

Ngày tải lên: 11/08/2014, 07:21

...

Ngày tải lên: 11/08/2014, 07:21

... Services ASP .NET ASP .NET System.Web System.Web Configuration Configuration SessionState SessionState Caching Caching Security Security Services Services Description Description Discovery Discovery Protocols Protocols UI UI HtmlControls HtmlControls WebControls WebControls ... Microsoft Corporation. All rights reserved. Microsoft, MS-DOS, Windows, Windows NT, ActiveX, IntelliMirror, JScript, MSDN, PowerPoint, Visual Basic, Visual C+ +, Visual C# , Visual Studio, Win32, ... with Types,” in Course 2415A, Programming the Microsoft .NET Framework with Visual Basic .NET (Prerelease). Specific classes are covered in Module 7, “Strings, Arrays, and Collections,” and other...

Ngày tải lên: 22/10/2013, 16:15

... Đ A constructor can call another constructor to do some of its work. The syntax for defining constructors varies slightly between Visual Basic and Visual C# . In Visual Basic, a constructor ... project On the Project menu, click Add Class. Or In Visual C# , right-click the project name in the Class View, point to Add, then click Add Class on the shortcut menu. The Visual Basic ... definition of a class, as shown in the following two screen shots. The Visual Basic class contains the minimum for a class declaration. Here’s the syntax for declaring a class in Visual Basic: ...

Ngày tải lên: 10/12/2013, 14:16

... in variable declaration (intrinsic data type) ByVal Used in argument lists Call Visual Basic .NET statement Case Used in the Select Case construct Catch Visual Basic .NET statement CBool ... Visual Basic Trim function is a member of the Microsoft.VisualBasic.Strings class, while the MsgBox function is a member of the Microsoft.VisualBasic.Interaction class. In addition, Visual Basic& apos;s ... Used in variable declaration (intrinsic data type) CInt Data-conversion function Class Visual Basic .NET statement CLng Data-conversion function CObj Data-conversion function Compare...

Ngày tải lên: 21/12/2013, 06:17

... EmailContacts VALUES(1,’Rick’, ’Dobson’, ’rickd@cabinc .net ) INSERT INTO EmailContacts VALUES(2,’Virginia’, ’Dobson’, ’virginia@cabinc .net ) SELECT * FROM EmailContacts GO A SELECT st at ... e concept s t hat you w ill find useful as you initially learn t he landscape of Visual Basic .NET. Th e second goal of Chapt er 1 is to introduce ADO .NET. I f you think of Visual Basic .NET ... of tinyint colum n values can exceed 255, but no individual t inyint colum n value can exceed 255. The tinyint / sm allint prom ot ion policy doesn’t apply t o calculat ions based on int colum...

Ngày tải lên: 24/12/2013, 02:18