资讯

Aggregate是一个可以从一个数据集合中获取标量值的函数,比如T-SQL中的Min()、Max()和Sum()等。现在VB和C#也都对这种聚合的功能给于了支持,但是是以一种非常不同的方式。 从这儿可以看到,VB和C#的版本几乎是一样的。但VB还为聚合专门提供了一个LINQ语法 ...
When you want to find all the objects that are missing a corresponding object, then you need the LINQ equivalent of an outer join. Here, step by painful step, is how to build that query. Here's a ...
Microsoft software architect Erik Meijer dreams of a "democratized" Web in which programming in the cloud is accessible to the masses. But he also has a recurring nightmare: "What happens if [chief ...
JNBridge, a maker of interoperability tools that connect the Java and .NET Frameworks, has announced its latest lab that demonstrates how to build .NET-based Language Integrated Query (LINQ) providers ...