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comparison UnitTests/Linq/GenerateTest.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System;
2 using System.Linq;
3 using System.Linq.Expressions;
4
5 using NUnit.Framework;
6
7 using BLToolkit.Linq;
8
9 namespace Data.Linq
10 {
11 using Model;
12
13 [TestFixture]
14 public class GenerateTest : TestBase
15 {
16 [Test]
17 public void GeneratePredicate()
18 {
19 Expression<Func<Person,bool>> a = x => x.FirstName == "John";
20 Expression<Func<Person,bool>> b = x => x.LastName == "Pupkin";
21
22 var bBody = b.Body.Convert(e => e == b.Parameters[0] ? a.Parameters[0] : e);
23 var predicate = Expression.Lambda<Func<Person,bool>>(Expression.AndAlso(a.Body, bBody), a.Parameters[0]);
24
25 using (var db = new TestDbManager())
26 {
27 var q = db.Person.Where(predicate);
28 var p = q.First();
29 }
30 }
31 }
32 }