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Notice the parameters that are sent to the GetObject() method: typeof(Hello) tells the method the class type of the remote object "tcp://localhost:4242/Hello" tells the method where to find the remote object We have selected the localhost (the local computer), port 4242 (where the component is registered and waiting for calls), and the URI (Hello), a named identity EXAM TIP Now for the $64,00000 question! The reference Hello h is what type of variable Remember that the client never talks to the remote object directly The variable h refers to the proxy object Actually, it refers to the transparent proxy object, which then communicates with the real proxy object

You d have to cut a lot of keys to make the money you can make from selling and installing a safe No one is in a better position than a locksmith to sell high-quality safes Whether you re just starting to sell them or you ve been selling them for years, you can boost your sales The key to selling more safes is for you and all your sales staff to focus on the four Ps of marketing: products, pricing, promotion, and physical distribution

All the pieces are now in place, and we are ready to test our remote application The first step is to start the hosting server application, HelloWorldServerexe (see Figure 27-4) In Figure 27-5, you can see that we have compiled all of our programs and have started the client application Notice in Figure 27-5 that the server has responded with Hello World! indicating that the client application has successfully sent a message to the remote server You can also examine the hosting application s response to the method calls recall that we inserted console output to indicate method calls Figure 27-6 shows the console output from the hosting server While you are in the process of developing remote components and testing them as we have done in this example, it is a good idea to place SystemConsoleWriteLine statements in your methods By doing this, you can see what is happening as the remote calls come through to the server object Notice in our example that the constructor is called and then the HelloWorld() method is called By looking at the output, you can see that we were successful in creating a remote component and building a remote server for it to execute through

Figure 27-4

Figure 27-5

One of the most important marketing decisions you can make is which safes to stock and recommend You need to consider quality, appearance, cost, warranty, and delivery time Only sell good safes you believe in Your enthusiasm for the safes you sell can make it easier for you to talk about them Little initial stock is needed to start selling safes If you want to be taken seriously, however, you need to have a few on display Most people want to see and touch a safe before buying it much like when buying a car Stock several sizes of each type of safe This can make it easier for you to sell the customer up to a more expensive model

Figure 27-6

In this section, we will look at another method of hosting the remote component As we have mentioned, the remote component can be hosted by any type of application In our previous example, we created a server console class to host our component In this section, we will use IIS and take advantage of an HTTP channel for transmission In addition to exploring the technique for using a remote component in IIS, we will look at the configuration file that can be created to provide information to the runtime environment We will also create our application within Visual Studio NET in order to take advantage of some of the shortcuts available developers

Create the remote server object within Visual Studio NET by following these steps: 1 Start a new class library application in Visual Studio Name it HelloWorldIIS