Entity Framework 3.5

When you develop a Web site using the Entity Framework in. Net 3.5, you encounter a problem: When you add a record, you cannot use the default value of the database for datetime-type data. 　　The specific situation is this, my database has a users table, three fields, Id,username,createtime. ID is int type, since growth, primary key username is Nvchar (10) type, not allowed to be empty createtime is da ...

This series of articles is a learning record about the fundamentals of azure services development, and because of time constraints, the process of wishing to discuss and explore yourself is from scratch, to be able to develop basic programming for azure services. There may be a very deep topic relative to each topic, and I would like to have time to do it through other articles. 　　The positioning of this series is basically positioning, take 20-30 minutes, download the code first, follow the article, run to get the relevant experience. The previous article is about Azure queue storage, this is about ...

C + + computer vision ccv-based on C language/provides cache/core machine Vision Library, novel Machine Vision Library opencv-It provides C + +, C, Python, Java and MATLAB interfaces, and supports Windows, Linux, Android and Mac OS operating system. General machine learning Mlpack dlib Ecogg Shark Closure Universal machine learning Closure Toolbox-cloj ...

This paper is an excerpt from the book "The Authoritative Guide to Hadoop", published by Tsinghua University Press, which is the author of Tom White, the School of Data Science and engineering, East China Normal University. This book begins with the origins of Hadoop, and integrates theory and practice to introduce Hadoop as an ideal tool for high-performance processing of massive datasets. The book consists of 16 chapters, 3 appendices, covering topics including: Haddoop;mapreduce;hadoop Distributed file system; Hadoop I/O, MapReduce application Open ...

Due to the planning of the new reorganization of the two-month suspension of Jinan Steel (600022), Laiwu Steel Shares (600102) launched a third version of the reorganization plan. The new restructuring has not changed the two previous plans to take Jinan iron and steel as a platform to absorb shares of Laiwu steel, the targeted additional acquisition of assets of the programme framework. But the new plan made a major adjustment to the key factors that left investors voting in the last vote, and all shareholders, rather than the dissenting shareholders who were asked for the last time, could exercise cash options. This adjustment will allow the restructuring to avoid future market volatility in the risk of restructuring, or will ...

Editor's note how does the Internet transform traditional industries? Is this a dilemma or an opportunity for innovators? October 16, 2014, Fast Company 2014 China's best innovation companies in Beijing, more than 60 innovative companies to participate in the selection. The event, which focuses on the world's newest innovative value through the innovative company selection process and the list release, discovers China's home-grown innovative genes to inspire Chinese innovation. Intern reporter Xu Xianchong newspaper reporter Chaoxiao finishing report Zhang Tianyi (New Dong founder, CEO): "Antique Dealer mode do ...

Absrtact: At present, Hubei Shiyan electronic commerce industry is in the rapid development stage, the city electric business enterprise more than 5,000, the practitioners reach more than 80,000 people. This year, the electric business transaction is expected to exceed 7 billion yuan according to statistics, Shiyan currently has more than 5,000 E-commerce application enterprises, the 2013 electricity at present, Hubei Shiyan E-commerce industry is in the rapid development stage, the city's electrical business enterprises more than 5,000, employees reached more than 80,000 people. This year, the electric business transaction is expected to exceed 7 billion yuan according to statistics, Shiyan currently has more than 5,000 e-commerce applications, 2013 E-commerce Exchange ...

After installing a virtual machine for Windows Server 2008, the development environment for Windows Azure is built up, hehe, and perhaps later development environments evolve to Windows Server 2008 + Visual Studio 2008 SP1 + SQL Server 2008 Express and Tools environment. Feel faster than Windows Server 2003, which means the size of the virtual machine is getting bigger ...

Absrtact: At present, Hubei Shiyan electronic commerce industry is in the rapid development stage, the city electric business enterprise more than 5,000, the practitioners reach more than 80,000 people. This year, the electric business transaction is expected to exceed 7 billion yuan according to statistics, Shiyan currently has more than 5,000 E-commerce application enterprises, the 2013 electricity at present, Hubei Shiyan E-commerce industry is in the rapid development stage, the city's electrical business enterprises more than 5,000, employees reached more than 80,000 people. This year, the electric business transaction is expected to exceed 7 billion yuan according to statistics, Shiyan currently has more than 5,000 e-commerce applications, 2013 E-commerce Exchange ...