'Skip' 方法仅支持 LINQ to Entities 中的排序输入。必须在方法 'Skip' 之前调用方法 'OrderBy'

Question

这是产生错误的行

 var genreModel = storeDB.Categories.Include("Albums").ToPagedList(pageNumber, pageSize)
.Single(g => g.Name == Category);

我做错了什么？

Answer 1

我推断 ToPagedList 在内部使用了 skip 和 take。只需在它之前包含一个 orderBy，例如：

var genreModel = storeDB.Categories.Include("Albums").OrderBy(x=>x.Id).ToPagedList(pageNumber, pageSize) .Single(g => g.Name == Category);

The 'Skip' method is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'