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Số sửa đổi được dành cho sửa lỗi. Nếu bạn sửa chữa một lỗi và chuẩn bị sẵn sàng để xác nhận rằng DLL của bạn là hoàn toàn tương thích ngược với phiên bản hiện tại, bạn nên tăng sửa đổi. Khi một ứng dụng tải một hội đồng, quy định cụ thể các phiên bản lớn và nhỏ mà nó muốn, | Programming C 2nd Edition In this case the server is assumed to be running on your local machine so the URI is http local.host followed by the port for the server 6510 0 followed in turn by the endpoint you declared in the server theEndPoint . The remoting service should return an object representing the interface you ve requested. You can then cast that object to the interface and begin using it. Because remoting cannot be guaranteed the network might be down the host machine may not be available and so forth you should wrap the usage in a try block try Programming CSharp.ICalc calc obj as Programming CSharp.ICalc double sum calc.Add 3 4 You now have a proxy of the Calculator operating on the server but usable on the client across the process boundary and if you like across the machine boundary. Example 19-4 shows the entire client to compile it you must include a reference to ICalc.dll as you did with CalcServer.cs . Example 19-4. The remoting Calculator client namespace Programming CSharp using System using System.Runtime.Remoting using System.Runtime.Remoting.Channels using System.Runtime.Remoting.Channels.Http public class CalcClient public static void Main int myIntArray new int 3 Console.WriteLine Watson come here I need you. create an Http channel and register it uses port 0 to indicate won t be listening HttpChannel chan new HttpChannel 0 ChannelServices.RegisterChannel chan get my object from across the http channel MarshalByRefObject obj MarshalByRefObject RemotingServices.Connect typeof Programming CSharp.ICalc http localhost 65100 theEndPoint try cast the object to our interface Programming CSharp.ICalc calc obj as Programming CSharp.ICalc 467 Programming C 2nd Edition use the interface to call methods double sum calc.Add 3.0 4.0 double difference calc.Sub 3 4 double product calc.Mult 3 4 double quotient calc.Div 3 4 print the results Console.WriteLine 3 4 0 sum Console.WriteLine 3-4 0 difference Console.WriteLine 3 4 0 product Console.WriteLine 3 4 0
