LINK - EF6 Update/Insert model object from outside of context

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LINK - https://msdn.microsoft.com/en-us/data/jj592676.aspx

public void InsertOrUpdate(Blog blog) 
{ 
    using (var context = new BloggingContext()) 
    { 
        context.Entry(blog).State = blog.BlogId == 0 ? 
                                   EntityState.Added : 
                                   EntityState.Modified; 
 
        context.SaveChanges(); 
    } 
}

LINK - EF6 Update/Insert model object from outside of context

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原文地址：http://blog.csdn.net/jameszhou/article/details/50010105