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This article mainly introduces "what syntax does LINQ query support". In daily operation, I believe many people have doubts about which syntax problems LINQ query supports. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "which grammars are supported by LINQ query". Next, please follow the editor to study!

We can use VB or C # to write LINQ queries for various data sources: SQL Server databases, XML documents, ADO.NET datasets, and any collection of objects that support IEnumerable or generic IEnumerable (T) interfaces.

LINQ query syntax support: Where, Select, GroupBy, Join, Max, Average, Min, Sum, OrderBy, Count and so on.

The following example uses an array of integers as a data source:

Class IntroToLINQ {static void Main () {/ / The Three Parts of a LINQ Query: / / 1. Data source. Int [] numbers = new int [7] {0,1,2,3,4,5,6}; / / 2.Query creation. / / numQuery is an IEnumerable var numQuery = from num in numbers where (num% 2) = = 0 select num; / / 3.Query execution. Foreach (int num in numQuery) {Console.Write ("{0jue 1}", num);}

The following figure shows the complete LINQ query operation.

At this point, the study of "which grammars are supported by LINQ queries" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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