calling a json web service

... in ADO.NET, which represents a set of commands and a connection to a database. SqlDataAdapter is a class derived from DataAdaptor. SqlDataAdapter is used to populate a DataSet. ! To add and ... creating a typed DataSet is as follows: 1. Generate a SqlDataAdapter. 2. Create a typed DataSet using the data adaptor that you created in the previous step. The SqlDataAdapter is a class ... architecture. A DataSet is an in-memory cache of data obtained from many possible data sources such as databases or Extensible Markup Language (XML) documents. A DataSet reads and writes data and schema...

Ngày tải lên: 21/12/2013, 05:17

... where aggregated Web Services are appropriate. ! Implement an aggregating Web Service that uses multiple Web Services. Materials and Preparation This section provides the materials and preparation ... specified ranges. \w Matches any word character. Same as [a- zA-Z_0-9]. \W Matches any nonword character. Same as [ ^a- zA-Z_0-9]. \s Matches any white-space character. Same as [\f\n\r\t\v]. ... not recognized as an escaped character, the \ matches that character. For example, \* is the same as \x 2A. Character classes Character classes are the set of characters that define the...

Ngày tải lên: 17/01/2014, 08:20

... create a Web Service that uses parameters? Technique For this How-To, you are going to create the start of a security Web Service. This security Web Service is going to take in two parameters: ... the name and password are found. Looking at the Security Table The security table is included in the Web Service& apos;s Web folder. It is called WebServiceSecurity.MDB and is, in fact, a jet ... Login Name and Password. It will then check against a table that you will create of names, passwords, and security levels. The method you will create first will then pass back True or False...

Ngày tải lên: 20/10/2013, 13:15

... method to return a DataSet with a DataTable containing all the rows from the Customers table (see Figure 17.6 ). Notice that the space characters in the whereClause parameter value have been converted ... returns a DataSet with a DataTable containing the one row from the Customers table with a CustomerID of ALFKI, as shown in Figure 17.5 . Notice that the equals (=) and single quote (') characters ... 'ALFKI' As you can see from Figure 17.5 , the DataSet is returned as an XML document. You can use this XML in your client programs that use the Web service. You'll see how to write a client...

Ngày tải lên: 24/10/2013, 12:15

... SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = selectString; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = ... 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. Start VS .NET and select ... 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 , you'll notice a method...

Ngày tải lên: 28/10/2013, 19:15

... your email address, name, and phone number Read the Terms Of Use page and click Accept if you want to continue. If you create a really useful Web service that you believe other organizations ... people's Web services in your system. You can even register Web services for your own organization's intranet and build an internal system made up of Web services written internally. ... 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 phone...

Ngày tải lên: 07/11/2013, 15:15

... Building and Consuming a Web Service That Uses ADO.NET Lesson: Building and Consuming a Web Service That Returns Data ! What Is a Web Service? ! How to Build a Web Service That Returns Database ... class. ! What are some other ways that you could fill the local DataSet with data other than by using a DataAdapter? ! What is the purpose of creating an empty, local instance of a DataSet? ! ... Consuming a Web Service That Uses ADO.NET How to Build a Web Service That Returns Database Information ! Web services that return database information typically: " Establish a connection...

Ngày tải lên: 10/12/2013, 16:15

... 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 UseWebServiceInWindows. ... UseWebServiceInWindows. Drag a DataGrid, TextBox, and Button control to your form. Set the Name property of your DataGrid to customersDataGrid. Set the Name property of your TextBox to whereClauseTextBox, ... then replace localhost with the name of your remote computer. Your Web service will be located and a test page displayed (see Figure 17.8 ). Note Once again, if your Web service is not...

Ngày tải lên: 14/12/2013, 22:15

... 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 ... 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 technologies that can be used ... values, and for describing the types of parameters and return values. When a client calls a Web service, it must specify the method and parameters by using this XML grammar. SOAP is an industry...

Ngày tải lên: 15/12/2013, 00:15

... [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT ... ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); da.Fill(orderDetailTable); ds.Tables.Add(orderDetailTable); ... 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...

Ngày tải lên: 24/12/2013, 05:15

... DataGrid object (see Figure 13.14). Otherwise, a message box appears saying that you cannot see the data. 1. Open the SecurityWebServices Web Service project you created in How-To 13.2. Add ... Web Service. If the username and password check out, then the GetUserInfo method is called, passing the username once again. The first table from the returned dataset is assigned to the DataSource ... from a data table. 2. If the goal is to include all the columns in the table and accept the Password column, then when other columns are added, you will not have to touch the code because the...

Ngày tải lên: 24/12/2013, 06:17

... that are passed to XML Web services and data that XML Web services return are sent in plaintext. If you transmit customer data or other sensitive data by using an XML Web service, you must make ... programming languages and operating systems, they are well suited for use with Enterprise Application Integration (EAI) systems. For example, an organization may want to integrate a Java-based ... Integrating XML Web Services in a B2B Solution What Are XML Web Services? XML Web services: ! Are XML-based units of application logic that provide data and services to other applications !...

Ngày tải lên: 17/01/2014, 08:20

... "Order_OrderDetails_Relation"; // . . . [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. ... Details]", ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); ... da.FillSchema(orderTable, SchemaType.Source); da.Fill(orderTable); ds.Tables.Add(orderTable); // Fill the OrderDetails table and add it to the DataSet. da = new SqlDataAdapter("SELECT...

Ngày tải lên: 21/01/2014, 11:20

... Northwind and a DataRelation between those tables. UpdateOrders( ) Takes a DataSet argument containing the changes made to the DataSet created by the LoadOrders( ) method, creates two DataAdapter ... ConfigurationSettings.AppSettings["DataConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); da.Fill(orderDetailTable); ds.Tables.Add(orderDetailTable); ... [WebMethod] public DataSet LoadOrders( ) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new SqlDataAdapter("SELECT...

Ngày tải lên: 26/01/2014, 10:20

... A side effect of having such a knowledge base is the ability of software programs to automate administrative tasks. Booking travel, for example, is an example where the Semantic Web and Web services ... services could aid in making a painful task easy. Making travel arrange- ments can be an administrative nightmare. Everyone has personal travel pref- erences and must take items such as the following ... infor- mation that will be valuable for this proposal. If your proposal team was able to enter information in your knowledge base, and you had a software agent to analyze that information, your agents...

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 08/08/2014, 19:20

Ngày tải lên: 14/08/2014, 12:20

Ngày tải lên: 14/08/2014, 12:20

Ngày tải lên: 14/08/2014, 12:20