BsonValue and custom classes in MongoDB C# Driver
I'm trying to use $push
in an update query in mongodb, with the c# driver.
The Update.Push(...)
method requires a string name (that's fine), and a BsonValue to be 'pushed'. This is where I run into problems. I'm trying to push a non simp开发者_如何学运维le type to the field's array.
For example: { $push : { "arrayfield" : { "a" : 7, "b" : 12 } } }
This works fine in the Mongo console, but I can't figure out how to make my object into a BsonValue. I've tried BsonValue.Create(myObjectInstance)
but that gives me an error saying the .NET type cannot be mapped to a BsonValue.
Am I missing something simple?
I know two approaches:
Update.PushWrapped<MyObject>("arrayfield", myObjectInstance);
//c# driver >= 1.0Or convert your class to
BsonValue
yourself viaToBsonDocument()
extension method.Update.Push("arrayfield", myObjectInstance.ToBsonDocument());
精彩评论