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

6 votes401 views1 answer
How to make rb.addforce 2d
C#
0 vote332 views1 answer
C# streamreader to file
C#
0 vote314 views2 answers
String parameter too long.' c#
C#
17 votes298 views4 answers
Height of binary tree
C#
0 vote349 views1 answer
Create a hash of an XML c#
C#
0 vote328 views2 answers
Openiddect ef core table not creating
C#
0 vote382 views1 answer
Callling class c#
C#
0 vote327 views1 answer
Autho close in persian time picker
C#
19 votes349 views2 answers
Unity set text value
C#Unity
10 votes334 views4 answers
React build command
C#