LINQ into Keyword

Using the 'into' keyword in LINQ queries can form a group or continue querying after the select clause.

var teenAgerStudents = from s in studentList
　　　　where s.age >　12　&& s.age <　20
　　　　select s
　　　　　　　　into teenStudents
　　　　　　　　where teenStudents.StudentName.StartsWith("B")
　　　　　　　　select teenStudents;

In the above query, the 'into' keyword introduces a new range variable teenStudents, so the first range variable s is out of scope. You can use the new range variable to write further queries after the 'into' keyword.

'into' Keyword in VB.Net is used for grouping.

Dim groupQuery = From s In studentList
　　　　　　　　　　　　　　　　　Group By s.Age Into Group