ObjectContext的GetTable等效 [英] GetTable equivalent for ObjectContext

问题描述

我之前使用过一个DataContext，它有一个GetTable（type）方法来获取表。示例：

I was previously using a DataContext which had a GetTable(type) method to get tables generically. Example:

context.GetTable(myObject.GetType());

最近我的团队决定切换到使用ObjectContext与Entity框架。有没有办法获得表的实体名称类似于DataContexts的GetTable方法，而不必指定一个特定的类型？它必须是通用的。

Recently my team decided to switch to using ObjectContext with the Entity Framework. Is there a way to get tables by the entity name similar to DataContexts GetTable method without having to specify a specific type? It has to be generic.

推荐答案

确实有一个非常简单的方法来这样做：

There is indeed a very simple way to do this, like so:

public IQueryable GetTable<T>(T entity) where T : class
{
    return context.CreateObjectSet<T>();
}

现在如果我创建一个 Person object并传递给它的通用方法，'allPeople'下面的变量将是一个 IQueryable 的人从我可以迭代的数据库。

Now if I create a Person object and pass to it the generic method, the variable below 'allPeople' will be an IQueryable of people from my database which you can iterate though.

Person person = new Person();
IQueryable allPeople = GetTable(person);

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