repro.cs

using System.Collections.Generic;
using System.Linq;
using System.Linq.Dynamic;
using Xunit;

namespace FullCircleTMS.Tests.Shared
{
    public class DynamicLinqTests
    {
        [Fact]
        public void Test()
        {
            var list = new List<Entity>
            {
                new Entity
                {
                    IsActive = true,
                    IsSomething = 1
                },
                new Entity
                {
                    IsActive = false,
                    IsSomething = 1
                },
                new Entity
                {
                    IsActive = true,
                    IsSomething = 2
                },
                new Entity
                {
                    IsActive = false,
                    IsSomething = 2
                },
            }.AsQueryable();

            var linqResult = list.Where(o => (o.IsActive && o.IsSomething == 1) || (o.IsActive == false && o.IsSomething == 2)).ToArray();
            Assert.Equal(2, linqResult.Length);
            
            var dynamicResult = DynamicQueryable.Where(list, "o => (o.IsActive && o.IsSomething == 1) || (o.IsActive == false && o.IsSomething == 2)").ToArray();
            Assert.Equal(2, dynamicResult.Length);
        }
    }

    public class Entity
    {
        public bool IsActive { get; set; }
        public int IsSomething { get; set; }
    }
}