The 5 Whys is a simple problem-solving technique that helps users to get to the root of the problem quickly. Made popular in the 1970s by the Toyota Production System, the 5 Whys strategy involves looking at any problem and asking: “Why?” and “What caused this problem?” Following is an example of the 5 Whys [...]

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I finally found it’s due to the remote desktop application “LogMeIn”. It installed another display adapter driver on my computer. Disable it, and everything will be OK.

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Run command in command window: net stop wuauserv

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ILLEGAL ATTEMPT TO ASSOCIATE A COLLECTION WITH TWO OPEN SESSIONS in nHibernate. Session.Evict(object o) can make the object detached, which can solve this problem.

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This problem will happen if you use trigger in one table. Set NOCOUNT ON in trigger will solve the problem,

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The way to solve this problem is to clear all proxy setting in your IE, sorry for the Chinese version, but I’m sure that you know how to arrive this window. Perhaps MS will solve it in the future. You can also refer to this link http://www.liveside.net/2010/06/25/essentials-installer-waitforcatalog-error-workaround/

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1, The first way, most common one. You will not see any Func<> delegation. class Program     {         static void Main(string[] args)         {             string[] videoGames = { "Halo3", "StarCraft2", "Kinect Sports", "Tomb Raider", "Final Fantasy", "Devil May Cry", "Call of Duty" };             var subset = from g in videoGames where g.Length [...]

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There is no unanimous consensus yet on what constitutes a sound developing methodology. However, it is arguable that fine development has five common characteristics: SRP, COP LSP, DIP, ISP. But that’s far from enough, any book talking software design contains these five principles in the first chapter and seems explain it very well. In addition, [...]

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  Implement a hint tools to show kind message. It has potential to be improved more powerful, but currently I believe it works well to deal with my requirements. Demo: http://www.iamtonyzhou.com/demos/jhint.sample/HTMLPage1.htm Download: http://www.iamtonyzhou.com/UploadFiles/JHint.Sample.zip The picture resources are from http://net.tutsplus.com/tutorials/javascript-ajax/build-a-better-tooltip-with-jquery-awesomeness/ I’m still finding my own background picture, tough job.:(

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Balsamiq is a mockup tool which can enable you Create software mockups in minutes. Today, I need to provide a UI prototype to my client. At the beginning, I preferred to use Visio, but suddently I realized, depends on my former experience, it may not be a quick and decent way to draw a web [...]

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