摘要： What is WCF? Windows Communication Foundation(WCF) is an SDK for developing and deploying services on Windows. WCF provides a runtime environment for your services, enbabling you to expose CLR typ... 阅读全文

摘要： About the script in my page:AJAX Asynchronous JavaScript and XML. Q: why do u create an http_request_check? what 's the use ? A: the object http_request_check is an object through which we s... 阅读全文

摘要： Q: does AJAX use still use a request/response model? A: Actually, your pages are still making request and getting responses. you 'are using a different approach in how you make those requests and hand... 阅读全文

摘要： 1.create an library project named ComPlusService, and add references to System.EnterprisesServices & System.Messaging; 2.sample codes using System; using System.Collections.Generic; using System.Linq;... 阅读全文

摘要： 1.Transactional message can be classified into internal transactional message and external transactional message i.internal message An internal transactional message si the simplest type o... 阅读全文

摘要： 1.basic concepts function pointer in C/C++ is just like delegate in C#. we can use function pointer to point to a specific function, and then use function pointer to invoke the specified function.... 阅读全文

摘要： 1.basic concepts malloc&free and new&delete are all used to request memory allocation and release memory allocated from heap area. eg. malloc.h must be referenced when using malloc&free ... 阅读全文

摘要： 1. In C programming, the normal use of #define is to declare an constant vairiable. But it's been replaced by const. C: #define X 100 ----> C++: const int x=100; 2. #define can also define ... 阅读全文

摘要： 1. what's timer Timer provides a mechanism for executing a method in at specified intervals. the hierarchy can be the following: System.Threading.timer; System.Timer.timer; System.Windows.form.timer; ... 阅读全文

摘要： i.respective classes and interfaces related asychronouse invoking in .Net FrameWork. a) IAsycResult interface IAsyncResult stores relative asynchronouse invoking information,includi... 阅读全文