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 ...
之前的文章中,我透过简单的代码,向大家展现了 Visual Basic 9 中 Linq 激动人心的新特性。而这一篇随笔,则将以更复杂的示例,展示 Linq 的灵活性与扩展性,以至于探索 Linq 的工作原理与进阶应用。 Linq 的不足 .Net Framework 3.5 Beta 1 中,LINQ 的应用还存在一定限制 ...
Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Vivek Yadav, an engineering manager from ...
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 ...