MongoDb c#官方驱动批量更新

Question

如何通过使用IMongoCollection 接口的新C# MongoDb 驱动程序重写以下旧代码：

var bulk = dbCollection.InitializeUnorderedBulkOperation();
foreach (var profile in profiles)
{
   bulk.Find(Query.EQ("_id",profile.ID)).Upsert().Update(Update.Set("isDeleted", true));  
}

bulk.Execute();

如何使用Builder机制创建Update操作我很清楚，但是如何执行更新批量操作？

Answer 1

MongoDB.Driver 有UpdateManyAsync

var filter = Builders<Profile>.Filter.In(x => x.Id, profiles.Select(x => x.Id));
var update = Builders<Profile>.Update.Set(x => x.IsDeleted, true);
await collection.UpdateManyAsync(filter, update);