c# - Telerik OpenAccess 和 where 子句中的多个条件

Question

我刚刚编写了一些单元测试，但令我恐惧的是它失败了。

这是我的测试...

[TestMethod]
public void FetchWithMoreThanOneConditionUsingKnownTypes() 
{
  using (var scope = EntityObjectScopeProvider.GetNewObjectScope()) 
  {
    var temp = new TempClient() { FirstName = "Rohan", Surname = "West" }; 
    var entity = scope.Extent<ClientEntity>().Where(c => temp.FirstName == c.FirstName && temp.Surname == c.Surname).FirstOrDefault(); 

    Assert.IsNotNull(entity);
    Assert.AreEqual(entity.FirstName, temp.FirstName); 
    Assert.AreEqual(entity.Surname, temp.Surname); 
  }
}

它给了我以下异常，无法将“Entities.Testing.TempClient”类型的对象转换为“System.String”类型。这是正常的吗，我希望不是，下面的测试工作正常。我猜在解析表达式时有问题......这会解决吗？

[TestMethod]
public void FetchWithMoreThanOneConditionUsingTempVariables() 
{
  using (var scope = EntityObjectScopeProvider.GetNewObjectScope()) 
  {
    var temp = new TempClient(){ FirstName = "Rohan", Surname = "West" };   

    string firstname = temp.FirstName; 
    string surname = temp.Surname; 

    var entity = scope.Extent<ClientEntity>().Where(c => c.FirstName == firstname && c.Surname == surname).FirstOrDefault(); 

    Assert.IsNotNull(entity);
    Assert.AreEqual(entity.FirstName, temp.FirstName);
    Assert.AreEqual(entity.Surname, temp.Surname); 
  }
}

Answer 1

在联系 Telerik 支持后，事实证明这是不可能的。