Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
547 views
in Technique[技术] by (71.8m points)

.net 4.0 - Entity Framework 4 Multiple Object Delete(RemoveAll)

I read that the new Entity Framework will include a method to delete multiple items (Linq to SQL has DeleteAllOnSubmit()) but I can't find the function/method to do that.

Is this in Beta 2 or do I have to make my own?

UPDATE:

This is what I'm using now:

    public void DeleteObjects(IEnumerable<object> objects)
    {
        foreach (object o in objects)
        {
            DeleteObject(o);
        }
        SaveChanges();
    }
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

EF 4 allows you to execute TSQL statements against an object context:

   using (var context = new EntityFrameworkExampleEntities())
    {       
     var count = 
         context.ExecuteStoreCommand(@"DELETE FROM Companies WHERE [CompanyID]=4");            
    }

See the following blog for details.

http://blogs.microsoft.co.il/blogs/gilf/archive/2009/11/25/execute-t-sql-statements-in-entity-framework-4.aspx


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

57.0k users

...