// Dynamic LINQ - stef

​

// @nuget: System.Linq.Dynamic.Core

// @nuget: Z.EntityFramework.Classic

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Data.Entity;

using System.Linq.Dynamic.Core;

public class Program

{   

    public static void Main()

    {

        GroupByMany_Dynamic_LambdaExpressions();

        GroupByMany_Dynamic_StringExpressions();

    }

    private static void GroupByMany_Dynamic_LambdaExpressions()

    {

        Console.WriteLine(nameof(GroupByMany_Dynamic_LambdaExpressions));

        var lst = new List<Tuple<int, int, int>>

        {

            new Tuple<int, int, int>(1, 1, 1),

            new Tuple<int, int, int>(1, 1, 2),

            new Tuple<int, int, int>(1, 1, 3),

            new Tuple<int, int, int>(2, 2, 4),

            new Tuple<int, int, int>(2, 2, 5),

            new Tuple<int, int, int>(2, 2, 6),

            new Tuple<int, int, int>(2, 3, 7)

        };

​

        var sel = lst.AsQueryable().GroupByMany(x => x.Item1, x => x.Item2).ToList();

​

        FiddleHelper.WriteTable(sel);

        FiddleHelper.WriteTable(sel[0].Items);

        FiddleHelper.WriteTable(sel[0].Subgroups);

    }

    private static void GroupByMany_Dynamic_StringExpressions()

    {

        Console.WriteLine(nameof(GroupByMany_Dynamic_StringExpressions));

        var lst = new List<Tuple<int, int, int>>

        {

            new Tuple<int, int, int>(1, 1, 1),

            new Tuple<int, int, int>(1, 1, 2),

            new Tuple<int, int, int>(1, 1, 3),

            new Tuple<int, int, int>(2, 2, 4),

            new Tuple<int, int, int>(2, 2, 5),

            new Tuple<int, int, int>(2, 2, 6),

            new Tuple<int, int, int>(2, 3, 7)

        };

​

        var sel = lst.AsQueryable().GroupByMany("Item1", "Item2").ToList();

​

        FiddleHelper.WriteTable(sel);

        FiddleHelper.WriteTable(sel[0].Items);

        FiddleHelper.WriteTable(sel[0].Subgroups);

    }

}