LINQ: 2 join with group by

var query = (
        //Customers
        from customer in context.Customers

        //Engineer 1
        join engineer1 in context.Employees on customer.PrimaryEngineer equals
        engineer1.EmployeeId into eng1 
        from engineer1 in eng1.DefaultIfEmpty()

        //Engineer Top
        join engineerTop in context.Employees on customer.TopEngineer equals 
        engineerTop.EmployeeId into top
        from engineerTop in top.DefaultIfEmpty()
        group new {customer, engineer1, engineerTop} by new {CustName = customer.Name, EmpId1 = engineer1.EmployeeId, EmpId2 = engineerTop.EmployeeId} into grp
        select new
        {
            Name = grp.Key.CustName,
            EmpId1 = grp.Key.EmpId1,
            EmpId2 = grp.Key.EmpId2
        });

Source: stackoverflow.com

Similar codes

8 votes152 views3 answers
List of list of string to list of string c#
C#
0 vote127 views1 answer
Unity unfreeze position in script
C#
7 votes133 views3 answers
C# repeat string x times
C#
8 votes135 views2 answers
Sum in c#
C#
0 vote157 views1 answer
Meaning immutable and mutable
C#
1 vote137 views2 answers
C# memorystream to byte array
C#
0 vote131 views1 answer
How to make rabbitmq start and stop base on c# services
C#
0 vote175 views1 answer
C# return propertty from each object in object lpist
C#
5 votes216 views2 answers
Unity hide in inspector
C#Unity
0 vote176 views1 answer
C# switch expression 8.0
C#