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Listing 3-12. The App.config File for the Client Code < xml version="1.0" encoding="utf-8" > <configuration> <system.serviceModel> <client> <endpoint address="http://localhost:8080/QuickReturns/Exchange" binding="basicHttpBinding" contract="QuickReturns.StockTrading.ExchangeServiceClient. ITradeService"> </endpoint> </client> </system.serviceModel> </configuration> There is an easier way to consume services without using the ChannelFactory. You can generate the proxies using the SvcUtil.exe utility. The SvcUtil.exe utility retrieves the metadata (WSDL) of the service, and based on that it will generate the proxy classes that can be used to call the service. In addition, it will make sure the contracts are generated as interfaces as well. Therefore, you can leave out the service contract and data contract you saw in Listing 3-11. The following call to SvcUtil.exe generates a proxy class for use in your client (make sure your service is running): svcutil.exe http://localhost:8080/QuickReturns The utility will generate a proxy class based on the metadata of the service, which can be retrieved with the following URL: http://localhost:8080/QuickReturns WSDL The utility will generate a proxy class for you (the file will be named TradeService.cs, and the configuration file is called Output.config). You can then simplify the client as shown in Listing 3-13. Listing 3-14 shows the generated Output.config configuration file. Listing 3-13. Simplified Client Code Using the Proxy Generated by SvcUtil.exe using System; using quickReturns; namespace QuickReturns.StockTrading.ExchangeService.Clients { class ExchangeServiceClientProxy { static void Main(string[] args) { TradeServiceProxy proxy = new TradeServiceProxy(); vb.net qr code scanner VB . NET QR Code Barcode Scanner DLL - Scan ... - BarcodeLib.com
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NET developers solve this problem, RasterEdge designs this powerful and multi- functional barcode reading and scanning SDK. Using this VB . NET QR Code ... Quote msftQuote = new Quote(); msftQuote.Ticker = "MSFT"; msftQuote.Bid = 30.25M; msftQuote.Ask = 32.00M; msftQuote.Publisher = "PracticalWCF"; Quote ibmQuote = new Quote(); ibmQuote.Ticker = "IBM"; ibmQuote.Bid = 80.50M; ibmQuote.Ask = 81.00M; ibmQuote.Publisher = "PracticalWCF"; proxy.PublishQuote(msftQuote); proxy.PublishQuote(ibmQuote); Quote result = null; result = proxy.GetQuote("MSFT"); Console.WriteLine("Ticker: {0} Ask: {1} Bid: {2}", result.Ticker, result.Ask, result.Bid); result = proxy.GetQuote("IBM"); Console.WriteLine("Ticker: {0} Ask: {1} Bid: {2}", result.Ticker, result.Ask, result.Bid); try { result = proxy.GetQuote("ATT"); } catch (Exception ex) { Console.WriteLine(ex.Message); } if (result == null) { Console.WriteLine("Ticker ATT not found!"); } Console.WriteLine("Done! Press return to exit"); Console.ReadLine(); } } } Unlike other books, which cover this topic, this book looks at advanced unsafe C++ from the eyes of someone who is coding in C++/CLI and wants to integrate some unsafe or unmanaged code into his or her existing code. (Usually the approach is the opposite, i.e., a developer is coding unsafe or unmanaged code and trying to force it into the C++/CLI environment.) It will regard the unsafe/unmanaged code as a black box that you will attach to your C++/CLI code in different fashions, depending on the type of unsafe/unmanaged code to which you are connecting. vb.net qr code reader Barcode Reader for .NET | C# & VB . NET Guide in Reading QR ...
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NET developers solve this problem, RasterEdge designs this powerful and multi- functional barcode reading and scanning SDK. Using this VB . NET QR Code ... The first thing you should probably do is download the code for this book from the Downloads section of the Apress Web site (http://www.apress.com) or from http://www.ProCppCLI.net. Most of the code in the book is listed in its entirety, but some of the larger programs (in particular, the Windows Forms applications) list only relevant code. In addition to the source code, you should have a copy of Visual Studio 2005 final beta or later. Note that most, but not all, the features mentioned in the book work with the Visual C++/CLI Express 2005 version. As long as you have the .NET Framework version 2.0 and its associated C++/CLI compiler, however, you should be able to build nearly everything in the book (though with a lot more effort). Listing 3-14. Output.config Generated by SvcUtil.exe < xml version="1.0" encoding="utf-8" > <configuration> <system.serviceModel> <bindings> <basicHttpBinding> <binding name="basicHttpBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="None"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="UserName" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="http://localhost:8080/QuickReturns/Exchange" binding="basicHttpBinding" bindingConfiguration="basicHttpBinding" contract="ITradeService" name="basicHttpBinding" /> </client> </system.serviceModel> </configuration> The ConvertQuarterAndBalanceToColor method is trivial, as well as CPU-bound. There is no real reason for this method to run on a separate worker thread. However, if we were to bind to a method that crossed a network boundary perhaps accessing a database on a separate server, for example we could ask the ObjectDataProvider to perform that work on a worker thread so as not to block the rest of the view s binding. This is as simple as setting the ObjectDataProvider s IsAsynchronous property to True: <ObjectDataProvider x:Key="myDomainObjectMethod" ObjectType="{x:Type local:DomainObject}" MethodName="ConvertQuarterAndBalanceToColor" IsAsynchronous="True"> Concurrency and threading are discussed in more detail in 4. This book contains material that isn t supported in Visual Studio .NET 2003 and the .NET Framework 1.1 vb.net qr code reader VB . NET QR-Code Reader - Stack Overflow
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