Implement for all classes BsonIgnoreExtraElements

Question

I'm using mongDb with MongoDrive, I wonder how I can implement to all my classes the `[BsonIgnoreExtraElements]`. I know there is a way through the `ConventionProfile`, but I do not know how to implement it.

Accepted Answer

Edit

Per Evereq's comment, the below is obsolete. Now use:

```
var conventionPack = new ConventionPack { new IgnoreExtraElementsConvention(true) };
ConventionRegistry.Register("IgnoreExtraElements", conventionPack, type => true);
```

Use the `SetIgnoreExtraElementsConvention` method (from the Conventions section of the C# Driver Serialization Tutorial):

```
var myConventions = new ConventionProfile();
myConventions.SetIgnoreExtraElementsConvention(new AlwaysIgnoreExtraElementsConvention()));
BsonClassMap.RegisterConventions(myConventions, (type) => true);
```

The parameter `(type) => true` is a predicate depending on the class type, that determines whether to apply the convention. So per your requirement it should simply return true regardless; but you could use this to set/exclude the convention on given types if you wanted.

Implement for all classes BsonIgnoreExtraElements

Solution

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