Question

这是我的代码：

var database = new MongoClient("mongodb://192.168.3.122").GetDatabase("xxxx");   
var collection = database.GetCollection<School>("School");

//var it = new List<IMongoQuery>();
//it.Add(Query.EQ("Phone", "77915656"));
//it.Add(Query.EQ("EstablishedYear", 1349));

//var query = new QueryBuilder<School>();
//query.And(it);

IMongoQuery query = new QueryDocument();

Query.And(query, Query.EQ("Phone", "77915656"));
Query.And(query, Query.EQ("EstablishedYear", 1349));
collection.Find(query).ToList(); // eror here!!!

我不知道如何从查询中获得结果？！

错误是：

'MongoDB.Driver.IMongoCollection'不包含'Find'的定义和最佳扩展方法重载'MongoDB.Driver.IMongoCollectionExtensions.Find（MongoDB.Driver.IMongo Collection，MongoDB.Driver.FilterDefinition，MongoDB。 Driver.FindOptions）'有一些无效的参数

Answer 1

您的Find不包含var database = new MongoClient("mongodb://192.168.3.122").GetDatabase("xxxx"); var collection = database.GetCollection<School>("School"); var builder = Builders<School>.Filter; var filter = builder.Eq("Phone", "77915656"); filter = filter & builder.Eq("EstablishedYear", 1349); var myFilteredList = collection.Find(filter).ToList();要求的类型...如果您想要创建过滤器，请使用过滤器构建器......我不在乎：

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如何在C＃和MongoDB version =“2.2.3”中动态添加过滤器到IMongoCollection？

1 个答案: