what is a web service in c

... you can concentrate on building a Web service. Web Services Enhancements Not long after Web services became a mainstream technology for integrating distributed services together, it became apparent ... WSDL for a Web service in a mechanical manner, and then use it to create a proxy object that a client can use to convert method calls into SOAP requests. You will do this later in this chapter. ... global reach. Web services use a standard, accepted, and well-understood protocol called HTTP to transmit data, and a portable data format that is based on XML. HTTP and XML are both standardized...

Ngày tải lên: 15/12/2013, 00:15

Ngày tải lên: 07/06/2014, 11:44

... typography and company logo's, this character is translated into a corporate identity, which is consistent and recognizable to anyone in contact with us. The corporate identity connects the Heineken ... Identity for Heineken Internationalisation and globalisation demand a clear picture of our organisation. It is in order to increase the familiarity of Heineken, reinforce our image and emphasise our ... Heineken, so in a way these forms also function as a business card. The new Corporate Identity does not simply denote a change in outward appearance, it also has practical objectives such as...

Ngày tải lên: 23/10/2012, 13:53

... frequently. Project management is a relatively recent approach to management. It is a particularly effective approach to gaining management control, and enables a focus on use of resources to gain specific ... something that is not part of ordinary day-to-day work. It also indicates something that is purposeful and distinct in character. In this chapter we consider how to dis- tinguish a project from ... common. A project: ࿖ has a clear purpose that can be achieved in a limited time; ࿖ has a clear end when the outcome has been achieved; ࿖ is resourced to achieve specific outcomes; ࿖ has someone acting...

Ngày tải lên: 24/10/2013, 08:20

... whereClause and click the Invoke button: CustomerID IS NOT NULL This causes the RetrieveCustomers() method to return a DataSet with a DataTable containing all the rows from the Customers table ... you'll see how to test your Web service. Testing a Web Service To test your Web service, point your browser to the following URL: http://localhost/NorthwindWebService/Customers.asmx Click ... 17.6 ). Notice that the space characters in the whereClause parameter value have been converted to plus (+) characters. You'll need to scroll down the page to see the other customers. ...

Ngày tải lên: 24/10/2013, 12:15

... SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = selectString; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand ... IContainer components = null; Creating a Web Service In this section, you'll create a Web service that contains a method that returns a DataSet containing rows from the Customers table. ... Notice that the Customers class is derived from the System .Web. Services.WebService class, which indicates that the Customers class forms part of a Web service. Near the end of Listing 1.1 ,...

Ngày tải lên: 28/10/2013, 19:15

... Registering a Web Service In this section, you'll see how to register a Web service using Microsoft's Universal Description, Discovery, and Integration (UDDI) service. You can think ... Logging in using a Microsoft Passport account Note If you don't have a Passport account, click the Get One Now link and sign up for a Passport account. Enter your email address, name, and ... organization's intranet and build an internal system made up of Web services written internally. In this section, you'll register the NorthwindWebService you created earlier in this...

Ngày tải lên: 07/11/2013, 15:15

... that you have seen examples of creating a Web service, you can practice creating a Web service programmatically. Instruct students to turn to the practice exercise at the end of this topic in ... Lesson: Building and Consuming a Web Service That Returns Data ! What Is a Web Service? ! How to Build a Web Service That Returns Database Information ! How to Consume a Web Service ***************************** ILLEGAL ... Building and Consuming a Web Service That Uses ADO.NET 3 What Is a Web Service? H T T P X M L XML ! Programmable logic accessible through standard Web protocols Web Service Client Web Service Web...

Ngày tải lên: 10/12/2013, 16:15

... Using a Web Service In this section, you'll see how to use a Web service in a Windows application. Start VS .NET and select File ➣ New ➣ Project. Create a new Windows application named ... computer. This code creates an object named myCustomersService to call your Web service, and displays the returned results from the RetrieveCustomers() method in customersDataGrid. Compile and run ... and a test page displayed (see Figure 17.8 ). Note Once again, if your Web service is not deployed on the local computer, then replace localhost in this code with the name of your remote computer....

Ngày tải lên: 14/12/2013, 22:15

... that is, on or off, magnetized or demagnetized. The machine is capable of storing and manipulating numbers, letters, and characters. The basic idea of a computer is that we can make the machine ... Computers accept information, perform mathematical and/or logical operations then supply new information. 2. All computers have three basic capabilities. 3. A computer is a machine that can ... of information. For this reason, computer can be defined as devices (thiết bị?) which(2) ( !devices) accept information in the form of instructions called a program and characters called data,...

Ngày tải lên: 21/12/2013, 20:15

... #!/bin/sh http_proxy=http://outer.proxy.server:8082/ export http_proxy /usr/etc/httpd -r /etc/inner-proxy.conf -p 8081 This is a little ugly, so there are also the following directives in ... following directives in the configuration file: http_proxy http://outer.proxy.server/ ftp_proxy http://outer.proxy.server/ gopher_proxy http://outer.proxy.server/ wais_proxy http://outer.proxy.server/...

Ngày tải lên: 23/12/2013, 19:15

... Use a DataSet object. The XML web service code contains two methods: LoadOrders( ) Creates and returns a DataSet containing the Orders and Order Details tables from Northwind and a DataRelation ... [ Team LiB ] Recipe 4.11 Updating Server Data Using a Web Service Problem You want to update a data source using an XML web service and use the web service from your client application. ... the UpdateOrders( ) method in the web service passing a DataSet containing changes made to the DataSet since the form was loaded or since the last time the UpdateOrders( ) method was called....

Ngày tải lên: 24/12/2013, 05:15

... Then, as with a local class, the client is able to instantiate the web service class using the new operator. For more information about creating and consuming XML web services, see the MSDN ... orders table to the grid. dataGrid.DataSource = ds.Tables[ORDERS_TABLE].DefaultView; Discussion An XML web service is software that is accessible using Internet standards such as XML and HTTP. ... Details]", ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source);...

Ngày tải lên: 21/01/2014, 11:20

... Medicine   http://orthopedics.about.com/cs/generalinfo4 /a/ salterharris.htm http://orthopedics.about.com/cs/generalinfo4 /a/ salterhar ris.htm Salter Salter - - Harris Fracture Classification Harris Fracture Classification Jonathan ... non - - displaced displaced What is a Salter What is a Salter - - Harris fracture? Harris fracture?   Fracture through growth plate in a pediatric Fracture through growth plate in a pediatric patient patient   35 ... epiphysis, Fracture through epiphysis, physis physis , and , and metaphysis metaphysis   Also chronic disability because of Also chronic disability because of articular articular surface involvement surface...

Ngày tải lên: 25/01/2014, 06:24

... nws.UpdateOrders(dsChanges); } Cursor.Current = Cursors.Default; } Discussion An XML web service is software that is accessible using Internet standards such as XML and HTTP. Because they are accessible ... a DataSet containing changes made to the DataSet since the form was loaded or since the last time the UpdateOrders( ) method was called. The C# code for the XML web service is shown in Example ... class. For the solution, the command is: wsdl.exe http://localhost/NorthwindWebServiceCS/NorthwindServiceCS.asmx Then, as with a local class, the client is able to instantiate the web service...

Ngày tải lên: 26/01/2014, 10:20

... in our applications we must execute some type of mathematical formula on our data. It's a rare occurrence when our data is actually exactly what we needed. As an example, let's say ... PLCs are used in many "real world" applications. If there is industry present, chances are good that there is a plc present. If you are involved in machining, packaging, material handling, ... LDA (LoaD Accumulator) and STA (STore Accumulator). The accumulator is simply a register inside the CPU where the plc stores data temporarily while its working. The LDA instruction typically...

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Ngày tải lên: 07/03/2014, 12:20

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