tailieunhanh - Professional C# 2008 phần 4

để biến đổi một đối tượng vào một đối tượng mới của một loại khác nhau. Chọn và SelectMany xác định một chiếu để lựa chọn các giá trị của kết quả dựa trên một chức năng chọn. Các nhà khai thác phân loại thay đổi thứ tự của các yếu tố trở lại. OrderBy các loại giá trị theo thứ tự tăng dần | Chapter 17 Assemblies PublicKeyToken b03f5f7f11d50a3a processorArchitecture msil ehepg Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil ehepgdat Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil ehExtCOM Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil ehexthost Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil ehRecObj Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil ehshell Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil EventViewer Version Culture Neutral PublicKeyToken 31bf3856ad364e35 processorArchitecture msil If the security of the system changes it s not sure if the native image has the security requirements it needs for running the application. This is why the native images become invalid with a system configuration change. With the command ngen update all native images are rebuilt to include the new configurations. Installing CLR runtime also installs the Native Image Service or the Window Service CLR Optimization Service with the name Microsoft .NET Framework NGEN . This service can be used to defer compilation of native images and regenerates native images that have been invalidated. The command ngen install myassembly queue can be used by an installation program to defer compilation of myassembly to a native image using the Native Image Service. ngen update queue regenerates all native images that have been invalidated. With the ngen queue options pause continue and status you can control the service and get status information. You might ask why the native images cannot be created on the developer system and you just distribute the native image to the production system. The reason is that the native image generator takes care of the CPU that is installed with the