My friend brought a ThinkPad SL500 to me. The login password are changed by somethings, that sounds some virus in there. I decided to rebuild the machine. So, I pressed F11 during the startup to enter the recovery center. Then I choose the option to… more »

In our AdvGenCMS, we use the repository pattern in the data layer. Inside each repository, there is a LINQ datacontext. We are completely hiding the LINQ from the upper layers. In this way, we can switch to use another ORM technology in the future… more »

Today, a friend asked me whether that is good to upgrade from Windows 8 to 8.1. My answer is "Good,please go ahead"! Windows 8.1 is better than Windows 8. At least you will have IE 11 and a "Start" button, although that is a kind of "Windows 8". Moreov… more »

I backed to build my first iOS app again. Today, I got this error:'Cannot create an NSPersistentStoreCoordinator with a nil model'. Actually, that is easy to fix. Please make this line of code: NSURL *modelURL = [[NSBundle mainBundle] URLForResourc… more »

A lot of people prefer to build a web app. They think using ASP.Net MVC or PHP + jQuery will be the best option. jQuery can make a web interface as good as a windows UI. Nowadays, web page can do a lot of interactions. Moreover, the users only need a… more »