一、环境

windows2012R2+mongdob 3.0X+ mongdb c#driver 2.2.1.6

二、数据分页显示

1.接口

public IQueryable<T> Table
{
    get
   {        return collection.AsQueryable<T>();

    }
}

2.查询

var query = _articleRepository.Table;

 query = query.OrderByDescending(b => b.CreatedOnUtc);

var result= query.ToList();

（简化了，实际是排序后分页获取数据）

3.数据量大时出现错误

出现如下错误：

An unhandled exception occurred while processing the request.

MongoCommandException: Command aggregate failed: exception: Sort exceeded memory limit of 104857600 bytes, but did not opt in to external sorting. Aborting operation. Pass allowDiskUse:true to opt in..

在 MongoDB.Driver.Linq.MongoQueryProviderImpl`1.Execute(Expression expression)

4.allowDiskUse:true 不知都在哪设置，求教。