Marek Posts - Answer Overflow

Marek

Posts Comments

CC#

•Created by Marek on 7/28/2023 in #help

Need help with finding one option in VS

10 replies

CC#

•Created by Marek on 7/24/2023 in #help

I need help with understanding the flow of LINQ query expressions

Hello, i'm starting to learn the LINQ language and i don't know if i got my understanding of the process of executing right. My "theory" on example below from official Microsoft documentation is this: 1. It splits students into a row of student 2. It groups every student by the Year property into studentGroups 3. It Selects new Anonymous type with Level and HighScore of the group I'm sorry if i messed it up but thats the reason why I'm even creating this post. My theory number two is that everything under from except select and let applies directly to from. I couldn't find which one of these theories is right if even any of them is :D

var queryGroupMax =
    from student in students
    group student by student.Year into studentGroup
    select new
    {
        Level = studentGroup.Key,
        HighestScore = (
            from student2 in studentGroup
            select student2.ExamScores.Average()
        ).Max()
    };

var queryGroupMax =
    from student in students
    group student by student.Year into studentGroup
    select new
    {
        Level = studentGroup.Key,
        HighestScore = (
            from student2 in studentGroup
            select student2.ExamScores.Average()
        ).Max()
    };

Thanks for your time, Mark PS: I get what it is doing and i do understand all the keywords just don't know the order of execution

5 replies

Gaming

Programming