// Dynamic LINQ - Union

​

// @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()

    {

        // Arrange

        var queryable = new List<bool> { true }.AsQueryable();

        var list1 = new List<string> { "User3", "User4" };

        var list2 = new List<string> { "User3", "User6", "User7" };

​

        // Act

        var result = queryable.AsQueryable().Select("@0.Union(@1).ToList()", list1, list2).ToDynamicArray<List<string>>();

        // Write result

        Console.WriteLine(string.Join(",", result[0]));

    }

}