实体框架 - 一对一关系，如何保存记录 [英] Entity Framework - One to One relationship, how to save record

问题描述

我正在尝试保存一个新的记录，困惑如何保存到第二个实体。我尝试了以下内容。

 将myObject作为新的MyObject 
 
 myObject.prop1 = 5 
 myObject.prop2 =Test
 
 myObject.myOtherObject.prop1 = 3 
 myObject.myOtherObject.prop2 =Hello
  

但是当我点击 myObject.myOtherObject.prop1 = 3 时会收到错误，因为 myOtherObject 尚未初始化。

如何在 myObject 之前初始化子对象？

解决方案

尝试：

 将myObject作为新的MyObject 
 
 myObject.prop1 = 5 
 myObject.prop2 =Test
 
 myObject.myOtherObject = new MyOtherObject 
 myObject.myOtherObject.prop1 = 3 
 myObject.myOtherObject .prop2 =你好
  

I have a one-to-one relationship on two tables with are represented by 2 classes in my EDM.

I am trying to save a new record and am confused how to save to the second entity. I have tried the following.

Dim myObject as new MyObject

myObject.prop1 = 5
myObject.prop2 = "Test"

myObject.myOtherObject.prop1 = 3
myObject.myOtherObject.prop2 = "Hello"

But I get an error when I hit myObject.myOtherObject.prop1 = 3 because myOtherObject hasn't been initialized.

How do I initialize an child object under myObject?

解决方案

Try:

Dim myObject as new MyObject

myObject.prop1 = 5
myObject.prop2 = "Test"

myObject.myOtherObject = new MyOtherObject
myObject.myOtherObject.prop1 = 3
myObject.myOtherObject.prop2 = "Hello"

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