C# MongoDB UpdateManyAsync with Set method throws an exception

Question

I use c# mongodb driver. When I want to update my specific values, it throws an exception. I used this before but I don't now how but i didn't get any error before. Here's my code:

var result = await col.UpdateManyAsync(
      p => p.X > 5, 
      Builders<Payment>.Filter.Gt(p => p.Amount, 100).Set("Level", "High")
);

And here's my Payment class:

public class Payment
    {
        public ObjectId Id { get; set; }
        public decimal Amount { get; set; }
        public Type Type { get; set; }
    }

utaco · Accepted Answer · 2017-01-25 15:47:56Z

6

You don't have Level property in your Payment class. If this is exactly what you want to do, then you need to add BsonIgnoreExtraElements attribute to your Payment class otherwise it throws an error as follows:

[BsonIgnoreExtraElements]
public class Payment
{
    public ObjectId Id { get; set; }
    public decimal Amount { get; set; }
    public Type Type { get; set; }
}

answered Jan 25, 2017 at 15:47

utaco

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3 Comments

user7469546 Over a year ago

ow! i forgot that. thanks it worked. yes i am exactly want to do this. if it is greater than 100 i will add a property.

Maksim Simkin Over a year ago

@sleven if your problem is solved, you could mark this answer as a solution :)

user7469546 Over a year ago

ah sorry i didn't know that. i tried now but it said you must wait 10 minutes for accept answer. maybe because of i'm new :)

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