更新: 梦想成为现实:在Enitity Framework中以理想方式实现指定字段查询
using (BlogDbContext context = new BlogDbContext()){ return (from b in context.BlogConfigs where b.UserName == loginName select new { BlogID = b.BlogID, Application = b.Application }) .ToList() .Select(b => new Blog() { BlogID = b.BlogID, Application = b.Application }) .FirstOrDefault<Blog>();}
需要注意的是一定要用ToList(),否则会出现下面的异常信息:
System.NotSupportedException : The entity or complex type 'Blog' cannot be constructed in a LINQ to Entities query.
来源:https://www.cnblogs.com/dudu/archive/2011/03/28/1997735.html