Field or property level serialization options in mongo db using c#.net

Element name

To specify an element name using attributes, write:

    public class MyClass {
        [BsonElement("sp")]
        public string SomeProperty { get; set; }
    }

The same result can be achieved without using attributes with the following initialization code:

    BsonClassMap.RegisterClassMap<MyClass>(cm => {
        cm.AutoMap();
        cm.GetMemberMap(c => c.SomeProperty).SetElementName("sp");
    });

Element order

 public class MyClass {
        [BsonElement("sp", Order = 1)]
        public string SomeProperty { get; set; }
    }
BsonClassMap.RegisterClassMap<MyClass>(cm => {
        cm.AutoMap();
        cm.GetMemberMap(c => c.SomeProperty).SetElementName("sp").SetOrder(1);
    });

Identifying the Id field or property

public class MyClass {
        [BsonId]
        public string SomeProperty { get; set; }
    }
BsonClassMap.RegisterClassMap<MyClass>(cm => {
        cm.MapIdProperty(c => c.SomeProperty);
        // mappings for other fields and properties
    });

Ignoring null values

    public class MyClass {
        [BsonIgnoreIfNull]
        public string SomeProperty { get; set; }
    }

Or using initialization code instead of attributes:

    BsonClassMap.RegisterClassMap<MyClass>(cm => {
        cm.AutoMap();
        cm.GetMemberMap(c => c.SomeProperty).SetIgnoreIfNull(true);
    });