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Fantastic Flatworm answered on September 3, 2020 Popularity 10/10 Helpfulness 3/10

answer group by linq c#

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group by linq c#

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_bankList.AsEnumerable().GroupBy(d => new { d.CUSTOMERS, Cust = d.CUSTOMERS, Cat = d.CATEGORY })
                                .Select(g => new { Customer = g.Key.CUSTOMERS, g.Key.Cat }).OrderBy(x => x.Cat).ToList();

Popularity 10/10 Helpfulness 3/10 Language csharp

Source: Grepper

Tags: c# group-by linq

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Contributed on Sep 18 2022

Fantastic Flatworm

0 Answers Avg Quality 2/10

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c# group by

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var groupByCompoundKey =
    from student in students
    group student by new
    {
        FirstLetter = student.LastName[0],
        IsScoreOver85 = student.ExamScores[0] > 85
    } into studentGroup
    orderby studentGroup.Key.FirstLetter
    select studentGroup;

foreach (var scoreGroup in groupByCompoundKey)
{
    string s = scoreGroup.Key.IsScoreOver85 == true ? "more than 85" : "less than 85";
    Console.WriteLine($"Name starts with {scoreGroup.Key.FirstLetter} who scored {s}");
    foreach (var item in scoreGroup)
    {
        Console.WriteLine($"\t{item.FirstName} {item.LastName}");
    }
}

/* Output:
    Name starts with A who scored more than 85
            Terry Adams
    Name starts with F who scored more than 85
            Fadi Fakhouri
            Hanying Feng
    Name starts with G who scored more than 85
            Cesar Garcia
            Hugo Garcia
    Name starts with G who scored less than 85
            Debra Garcia
    Name starts with M who scored more than 85
            Sven Mortensen
    Name starts with O who scored less than 85
            Claire O'Donnell
    Name starts with O who scored more than 85
            Svetlana Omelchenko
    Name starts with T who scored less than 85
            Lance Tucker
    Name starts with T who scored more than 85
            Michael Tucker
    Name starts with Z who scored more than 85
            Eugene Zabokritski
*/

Popularity 9/10 Helpfulness 4/10 Language csharp

Source: learn.microsoft.com

Tags: c# group-by group-b

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Contributed on Jun 28 2023

DOS.NET

0 Answers Avg Quality 2/10

linq group by

Comment

var results = persons.GroupBy(
    p => p.PersonId, 
    p => p.car,
    (key, g) => new { PersonId = key, Cars = g.ToList() });

Popularity 10/10 Helpfulness 4/10 Language whatever

Source: stackoverflow.com

Tags: whatever whateve

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Contributed on Sep 03 2020

Happy Heron

0 Answers Avg Quality 2/10

c# group by

Comment

nums = new int[]{1,1,2,3,4,4,4,4,5};
var groupS =nums.GroupBy(x => x);
// for detail view take look at below or click on source link 
// https://leetcode.com/problems/majority-element/discuss/2657752/103-ms-faster-than-97.70-of-C-online-submissions-One-Liner

Popularity 10/10 Helpfulness 2/10 Language csharp

Source: leetcode.com

Tags: c# c

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Contributed on Oct 04 2022

PrashantUnity

0 Answers Avg Quality 2/10

group by linq c#

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