C# 虚拟财产赢得'；t实体框架6中的延迟加载（带警告）

我被卡住了

这是我的模型：

public class Payment 
{
    [ForeignKey("RecipientId")]
    public virtual Account Recipient { get; set; }

    public string RecipientId { get; set; } 

    [Key, Column(TypeName = "char"), MaxLength(36)]
    public string PaymentId { get; set; }
}

该模型通过fluent API表示如下：

modelBuilder.Entity<Payment>()
    .HasRequired(t => t.Recipient)
    .WithMany()
    .HasForeignKey(t => t.RecipientId)
    .WillCascadeOnDelete(false);

好的请求

=========================================================
ID: 'bf08bdf4-a9d5-42e0-9236-a65faa4cc6ea                  '
=========================================================
SELECT 
    [Extent1].[TransactionId] AS [TransactionId],
    [Extent1].[RecipientId] AS [RecipientId],
    [Extent2].[AccountId] AS [AccountId], 
    [Extent2].[Name] AS [Name],
    FROM   [dbo].[Payment] AS [Extent1]
    INNER JOIN [dbo].[Account] AS [Extent2] ON [Extent1].[RecipientId] = [Extent2].[AccountId]
=========================================================
Recipient is null...

=========================================================
ID: 'f0e9beef                               ' 
=========================================================
SELECT 
    [Extent1].[TransactionId] AS [TransactionId],
    [Extent1].[RecipientId] AS [RecipientId],
    [Extent2].[AccountId] AS [AccountId], 
    [Extent2].[Name] AS [Name],
    FROM   [dbo].[Payment] AS [Extent1]
    INNER JOIN [dbo].[Account] AS [Extent2] ON [Extent1].[RecipientId] = [Extent2].[AccountId]
=========================================================
Recipient is not null!
RecipientId: '835cbb56                          '    
Name: John Doe

---

更新

我正在调查原始sql的结果，发现新更改的属性上保存了额外的空间

我偶然发现了Ro Miller的这篇文章：

传达字符串截断可能是一个问题。。。让我们看看…

是的

更改ID字段的长度后，在返回LINQ to Entity查询时，我得到了不需要的“空白”

通过遵循Ro Miller的拦截器指南，我能够保证在到达数据库的过程中所有字符串字段都被修剪

重要的是要注意到，最近EF6.1中才提供了接收器功能

---

希望能帮助别人。。。我今天花了11个小时在这上面。

修复了。谢谢你；）fluent API用于

交易

，而不是

支付

。你能给我们看看它生成的SQL语句吗？（并向我们显示一个通过SQL加载但未加载到数据集中的ID？）