What are the forms of Select operations in LINQ to SQL statements

This article will explain in detail the forms of Select operation in LINQ to SQL sentences. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

1. Specify the type form:

Description: this form returns the set of objects of your custom type.

Var Q = from e in db.Employees select new Name {FirstName = e.FirstName, LastName = e.LastName}

two。 Filter type form:

Description: combined with the use of where, play a filtering role.

Var Q = from c in db.Customers where c.City = = "London" select c.ContactName

3.shaped type form:

Note: its select operation uses an anonymous object, and the property of this anonymous object is also an anonymous object.

Var Q = from c in db.Customers select new {c.CustomerID, CompanyInfo = new {c.CompanyName, c.City, c.Country}, ContactInfo = new {c.ContactName, c.ContactTitle}} This is the end of this article on "what are the forms of Select operations in LINQ to SQL sentences?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.