accessing data with c and ado net

... Data- Centric Applications and ADO. NET 13 Evolution of ADO to ADO. NET Command Command XxxConnection XxxConnection XxxTransaction XxxTransaction XxxCommand XxxCommand DataSet DataSet Recordset Recordset ... Close the SqlConnection Module 1: Data- Centric Applications and ADO. NET 17 Using ADO. NET Classes in a Disconnected Scenario ! DataSet DataSet SqlDataAdapter SqlDataAdapter SqlConnection SqlConnection ... authentication control section, click Edit Unselect the Anonymous access check box Click OK Click OK 24 Module 1: Data- Centric Applications and ADO. NET Right-click the OnTheRoadWS virtual directory again,...

Ngày tải lên: 24/01/2014, 10:20

... protocols and services that handle request processing inside IIS 7.0 Protocol Listeners Protocol listeners are services in which each service is configured to listen and process a specific protocol ... Book Covers The subject of ASP .NET security can refer to a lot of different concepts: security features, best coding practices, lockdown procedures, and so on This book addresses ASP .NET security ... path, and the port, and finally, a call to the CommitChanges method to reflect the changes in the ApplicationHost.config configuration file The result of executing the preceding code can be checked...

Ngày tải lên: 05/03/2014, 22:20

... DataRowCollection DataColumnCollection ConstraintCollection Connected Classes NET Data Provider DataAdapter SelectCommand InsertCommand DeleteCommand Command Connection DataRelationCollection XML DataReader ... covered in detail because these classes can be used without ever creating a connection to a data store ADO. NET Classes Disconnected Classes DataSet DataTableCollection DataTable DataRowCollection ... Working with the DataTable and DataSet Classes The ADO. NET class hierarchy can be split into two categories: connected and disconnected objects Figure 1-1 shows the principal connected and disconnected...

Ngày tải lên: 05/05/2014, 11:21

... public variables directly inside the Form class: C# private AsyncCallback acceptCallBack; private AsyncCallback receiveCallBack; public Socket listenerSocket; public Socket clientSocket; public ... public byte[] recv; VB .NET Private acceptCallBack As AsyncCallback Private receiveCallBack As AsyncCallback Public listenerSocket As Socket Public clientSocket As Socket Public recv() As Byte These ... incoming connections: C# public void acceptHandler(IAsyncResult asyncResult) { receiveCallBack = new AsyncCallback(receiveHandler); clientSocket = listenerSocket.EndAccept(asyncResult); recv = new...

Ngày tải lên: 12/08/2014, 21:20

... toHex(colorDialog.Color.B) Dim doc As HTMLDocument = CType(WebBrowser.Document, _ HTMLDocument) Dim selection As Object = doc.selection.createRange() doc.execCommand("ForeColor",False,colorCode) (CType(selection, ... (HTMLDocument)WebBrowser.Document; object selection = doc.selection.createRange(); doc.execCommand("ForeColor",false,colorCode); ((IHTMLTxtRange)selection).select(); } VB .NET Private Sub btnColor_Click(ByVal ... TcpListener(port) tcpListener.Start() 4.3 Web servers 117 Dim handlerSocket As Socket = tcpListener.AcceptSocket() If handlerSocket.Connected = true then lbConnections.Items.Add( _ handlerSocket.RemoteEndPoint.ToString()...

Ngày tải lên: 12/08/2014, 21:20

... Details, and create two column headers labeled → From and Subject Click on the Project→Add Reference Click COM, scroll down the list, and select Microsoft Outlook 10.0 Object Library, and then click ... is encrypted, and transparency, because the client can retain its own IP address To become a VPN client, on Windows 2000, click Start→Settings→ Network Connections, and then click New Connection ... Windows XP, click Start→Control Panel→Network Connections→Create a New Connection→Next Click on “Connect to a private network through the Internet” on Windows 2000 or “Connect to the network at...

Ngày tải lên: 12/08/2014, 21:20

... CA and can optionally hold certificates in the active directory When used in conjunction with the active directory, MSCS will use this as its certificate revocation list (CRL) A CRL is a publicly ... Select Create New, then PKCS #12 Token, then the tick icon Select Actions→Generate Key, then click the tick icon to accept the default RSA 1024bit security Select Actions→Create Certificate→Self-Signed ... text The second section describes asymmetric encryption, which is most applicable for securing data in transit The chapter concludes with a discussion on symmetric encryption, which is ideal...

Ngày tải lên: 12/08/2014, 21:20

... Dim TcpClientSocket As TcpClient = New TcpClient(host, port) Dim NetStrm As NetworkStream = TcpClientSocket.GetStream() szData = _ System.Text.Encoding.ASCII.GetBytes(cmd.ToCharArray()) NetStrm.Write(szData, ... WebProxy { public Socket clientSocket; public Form1 UserInterface; } VB .NET Public Class WebProxy Public clientSocket As Socket Public UserInterface As Form1 End Class The entry point to the class is ... Tricks and tips to increase performance be applicable; however when used correctly, each of the following methods will help keep your data moving quickly 11.2.1 Caching Caching can increase network...

Ngày tải lên: 12/08/2014, 21:20

... classes contained 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 ... project in Visual Studio NET, right-click on the toolbox on the left, and click Customize Toolbox (or Add/Remove Items in Visual Studio NET 2003), click the COM tab, check PacketXCtrl Class, and ... object that effectively derives from System.EventArgs, yet contains a PacketClass object that contains information on the packet contents and the exact time (with microsecond accuracy) the packet...

Ngày tải lên: 12/08/2014, 21:20

... public public public public public public public public public public public public public public public static int hCall; static int hTAPI; static int lNumLines; static int hLine; static linedevcaps ... public public public public public public public public public public public public public public public public public public public 385 int dwDevCapFlags; int dwMaxNumActiveCalls; int dwAnswerMode; ... Sub Click the Accept button and enter the following code: C# private void btnAcceptCall_Click(object sender, System.EventArgs e) { acceptCall(); } VB .NET Private Sub btnAccept_Click(ByVal eventSender...

Ngày tải lên: 12/08/2014, 21:20

... Computers→My → Computer→COM+ Applications Right Click ComPlusServer, → select properties→Security Uncheck Enforce access checks for this application Right click ComPlusServer, and click start Chapter ... Microsoft.com Click Start→Settings→Network and Dial-up Connections Right-click on your Ethernet card and click Properties Click Install In the Select Network Component Type box, click Protocol and then click ... migrate C+ + Windows socket code to Chapter 16 464 16.8 IPv6 routing IPv6 compliance C+ + network programming code was concerned mainly with interfacing directly into wsock32.dll, which luckily C# or...

Ngày tải lên: 12/08/2014, 21:20

... service, such as in the following code snippet: C# localhost.Service1 webservice = new localhost.Service1(); CredentialCache cache = new CredentialCache(); Chapter 17 496 17.7 Security NetworkCredential ... 209–12 Cryptographic algorithms (ciphers), 212 CuteFTP, 73 CWD command, 189 Cyclic redundancy check (CRC), 234 Data compression, 289–90 encoding, 28 posting, 97–104 SMB, 366 WMI, 330 Databases connection ... X509Certificate.CreateFromCertFile( "c: \\myCertificate.cer"); webservice.ClientCertificates.Add(x509); 17.8 Web services enhancements 497 VB .NET Dim webservice As localhost.Service1 = New _ localhost.Service1()...

Ngày tải lên: 12/08/2014, 21:20

Ngày tải lên: 14/12/2013, 20:16

... That cannot be explicitly included because only elements with parameterless public constructors can be instantiated in XAML files, and the UIElementCollection class is missing that constructor ... BlankPage.xaml.cs source code, and you’ll discover that Page is in the Windows.UI.Xaml.Controls namespace The constructor of the BlankPage class calls an InitializeComponent method (which I'll discuss ... Although you can’t mix languages within a single application, you can create language-independent libraries with their own winmd files The C+ + programmer uses a dialect of C+ + called C+ + with Component...

Ngày tải lên: 08/03/2014, 18:20

... with Data, Files, and Networking Handling Application Data and Files Getting Started with the Data Samples App Understanding Windows.Storage API Working with Data and Files Locations File Access ... Permissions Local Settings and Application Data Roaming Settings and Application Data Temporary Application Data Versioning Application Data Clearing Application Data Displaying Pictures Library Content ... Selecting Files: User Experience Tracking Files and Folders Serializing and Deserializing Data Data Encryption and Decryption Networking Establishing Socket Connectivity Data Transfers Activating...

Ngày tải lên: 15/03/2014, 11:13

... prototyping and accurate data outputs than in program elegance or structure The novice engineering programmer is concerned principally with modeling physical systems or phenomena and processing accurate ... write data to memory, or process data in the ALU The way that the machine processes data, the range and format of data that the machine can handle, and the type of instructions that the machine can ... the critical dependence of data accuracy on the architecture of the implementing platform, particularly with respect to variable typing, demands xi Preface that these concepts be understood by...

Ngày tải lên: 19/03/2014, 14:08