IQueryable with Entity Framework - order, where, skip and take 无效

Question

我正在使用 Entity Framework（代码优先），如下所示：

IQueryable<StammdatenEntityModel> query = dbSet;

query.OrderByDescending(s => s.CreateDateTime);

query.Where(s => s.Deleted == false);

if(!String.IsNullOrEmpty(keyword))
{
    query.Where(s => s.SerialNumber.Contains(keyword)); //simplified for SO
}

query.Skip(skip);
query.Take(take);

但是 OrderByDescending、Where、Skip 和 Take 没有任何效果。

Answer 1

您没有使用查询结果

IQueryable<StammdatenEntityModel> query = dbSet;
query = query.OrderByDescending(s => s.CreateDateTime);
query = query.Where(s => s.Deleted == false);
if(!String.IsNullOrEmpty(keyword))
{
    query = query.Where(s => s.SerialNumber.Contains(keyword)); //simplified for SO
}
query = query.Skip(skip);
query = query.Take(take);