8: A SPNET AJA X Communication Archite cture in Visual Studio .NET

Generator EAN-13 in Visual Studio .NET 8: A SPNET AJA X Communication Archite cture
8: A SPNET AJA X Communication Archite cture
EAN-13 Generator In .NET
Using Barcode printer for ASP.NET Control to generate, create EAN-13 image in ASP.NET applications.
In Listing 89 the SystemServiceModel element contains the behavior and service con guration information for our product service The behavior information is contained in the behaviors element, and the service bindings are contained in the services element The behaviors of a service in uence the WCF runtime characteristic of the service In our case, the enableWebScript behavior makes it possible for the web service to be consumed from an ASPNET AJAX page The service address, binding, and contract in uence how the client communicates with the service Setting the binding to webHttpBinding enables the service to communicate using HTTP requests using the REST-based communication pattern And setting the contract to the ProductLookupDemoProduct class speci es that this class contains the contract for our service
Barcode Maker In Visual Studio .NET
Using Barcode drawer for ASP.NET Control to generate, create bar code image in ASP.NET applications.
Listing 89 Product Service Configuration Settings
Making GS1 - 13 In .NET
Using Barcode creator for .NET framework Control to generate, create EAN / UCC - 13 image in .NET framework applications.
<systemserviceModel> <behaviors> <endpointBehaviors> <behavior name="ProductLookupDemoProductAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> <services> <service name="ProductLookupDemoProduct"> <endpoint address="" behaviorConfiguration="ProductLookupDemo ProductAspNetAjaxBehavior" binding="webHttpBinding" contract="ProductLookupDemoProduct" /> </service> </services> </systemserviceModel> is
Paint GS1-128 In .NET
Using Barcode maker for ASP.NET Control to generate, create GTIN - 128 image in ASP.NET applications.
Page Methods The use of page methods in ASPNET 20 AJAX Extensions can be thought of as a special type of web service that enables you to create a method on an ASPNET 20 page and expose it as a REST resource The appeal of page methods is that they provide a familiar coding experience to developers used to programming ASPNET pages and allow them to call back to the
Barcode Creation In .NET Framework
Using Barcode generation for ASP.NET Control to generate, create barcode image in ASP.NET applications.
A SPNET AJA X 20 Extensions Communication Archite cture
Generate Bar Code In VS .NET
Using Barcode creator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
server without creating a web service and, more important, without incurring the overhead of the page lifecycle
Code 39 Extended Generation In .NET
Using Barcode creation for ASP.NET Control to generate, create ANSI/AIM Code 39 image in ASP.NET applications.
NOTE
Encode Data Matrix ECC200 In .NET Framework
Using Barcode maker for ASP.NET Control to generate, create DataMatrix image in ASP.NET applications.
Page Method Issues
Drawing Bar Code In .NET
Using Barcode creator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
As we begin our discussion about page methods, you should keep a few things in mind First, page methods work only on pages and are not supported in controls Second, the underlying serialization technology used by page methods is being replaced by the WCF JSON serializer If you plan to use page methods, you should use types that are easy to serialize and avoid using complex types that require additional coding to serialize properly
Encode British Royal Mail 4-State Customer Barcode In VS .NET
Using Barcode drawer for ASP.NET Control to generate, create British Royal Mail 4-State Customer Barcode image in ASP.NET applications.
The implementation of page methods is simple, requiring the method to be declared as static and the SystemWebServicesWebMethod attribute to be applied The code in Listing 810 shows the declaration for the Product Lookup and AdvancedProductLookup page methods that provide the same functionality as their AJAX-enabled WCF service counterparts
Generating Barcode In .NET Framework
Using Barcode generation for .NET Control to generate, create bar code image in .NET applications.
Listing 810 Page Method Declaration
Drawing Barcode In VS .NET
Using Barcode drawer for .NET framework Control to generate, create barcode image in .NET applications.
[WebMethod] public static ProductDetail ProductLookup(string productNumber) { if (stringIsNullOrEmpty(productNumber)) throw new ArgumentNullException("productNumber"); return ProductSearchLookup(productNumber); } [WebMethod] public static ProductDetail AdvancedProductLookup(SearchCriteria criteria) { if (criteria == null) throw new ArgumentNullException("criteria"); return ProductSearchLookup(criteriaProductNumber); }
GS1 128 Generation In Java
Using Barcode generator for Java Control to generate, create GS1 128 image in Java applications.
As with web services, registration with the ScriptManager is required to generate the proxy class needed to call the page methods from the client
Data Matrix 2d Barcode Encoder In .NET Framework
Using Barcode creator for VS .NET Control to generate, create Data Matrix ECC200 image in .NET framework applications.
8: A SPNET AJA X Communication Archite cture
UCC - 12 Printer In Visual Studio .NET
Using Barcode creation for Visual Studio .NET Control to generate, create GTIN - 12 image in .NET framework applications.
The registration process, as seen in Listing 811, is simple and only requires setting the EnablePageMethods property to true to get all page methods on the page to be callable
Data Matrix ECC200 Recognizer In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
Listing 811 ScriptManager Setting for Page Methods
European Article Number 13 Drawer In Java
Using Barcode creator for Java Control to generate, create EAN13 image in Java applications.
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true"> </asp:ScriptManager>
Bar Code Generator In .NET Framework
Using Barcode generation for VS .NET Control to generate, create barcode image in .NET framework applications.
Serialization The support for serialization in ASPNET 20 AJAX Extensions spans not only web services but also into many of the supporting classes responsible for transmitting proxy and initialization data to the client In most cases, the serialization of objects happens automatically In more complex scenarios, however, some additional work is required to properly convert data to and from JSON In this section, we cover the complex subject of serialization and how ASPNET 20 AJAX Extensions support working with JSON data of varying complexities
Making Code 128 In VS .NET
Using Barcode printer for .NET Control to generate, create Code 128 Code Set C image in .NET applications.
JavaScript Object Notation
Making Barcode In Visual C#
Using Barcode encoder for Visual Studio .NET Control to generate, create barcode image in .NET applications.
Before we go into how to serialize JSON, it might be wise to talk about what JSON is JSON, JavaScript Object Notation, is a lightweight data interchange format that is both easy to read and compact The composition of JSON data follows two patterns:
1 Name and value pairs of data in the format of name:value inside a
left brace, {, and right brace, }, and separated by commas
2 Arrays containing comma-separated data inside a left bracket, [, and
right bracket, ] To get a better feel for how an object is composed in JSON, let s take a look at the ProductDetail class from earlier The JSON representation of the ProductDetail class, shown in Listing 812, uses name:value pairs to represent the ProductNumber, Description, and Price values of the object What makes working with JSON so appealing is its tight integration with JavaScript and how it leverages the object notation that is natively supported, making it easy to turn JSON data into an object by applying the JavaScript eval operator to the data