EF以编程方式插入多对多 [英] EF programmatically insert many to many

问题描述

我有一个具有此结构ID PK的表和两个带有FK的列，例如ActivityID和ContactID。
我尝试以编程方式在这两个FK列中插入一些值。
我该怎么做，需要任何帮助。Tnx

I have table with this structure ID PK and two columns with FK for example ActivityID and ContactID. I try programmatically insert some value in this two FK columns. How can I do this, any help is appriciated.Tnx

推荐答案

如果您想使用自己的结构-

If you want to use your structure - you have to get instances of Activity and of Contact and just set corresponding properties on new entity.

var newActivityContact = new ActivityContact();// m_Entities.CreateActivityContact(0);
newActivityContact.Activity = activityRepository.GetById(activityId);
newActivityContact.Contact = contactRepository.GetById(contactId);
m_Entities.AddToActivityContact(newActivityContact);
m_Entities.SaveChanges();

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