view UnitTests/Linq/GenerateTest.cs @ 9:1e85f66cf767 default tip

update bltoolkit
author nickolay
date Thu, 05 Apr 2018 20:53:26 +0300
parents f990fcb411a9
children
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using System;
using System.Linq;
using System.Linq.Expressions;

using NUnit.Framework;

using BLToolkit.Linq;

namespace Data.Linq
{
	using Model;

	[TestFixture]
	public class GenerateTest : TestBase
	{
		[Test]
		public void GeneratePredicate()
		{
			Expression<Func<Person,bool>> a = x => x.FirstName == "John";
			Expression<Func<Person,bool>> b = x => x.LastName  == "Pupkin";

			var bBody     = b.Body.Convert(e => e == b.Parameters[0] ? a.Parameters[0] : e);
			var predicate = Expression.Lambda<Func<Person,bool>>(Expression.AndAlso(a.Body, bBody), a.Parameters[0]);

			using (var db = new TestDbManager())
			{
				var q = db.Person.Where(predicate);
				var p = q.First();
			}
		}
	}
}