AWS SDK for .NET Documentation
IgnoreNullValues Property
AmazonAmazon.DynamoDBv2.DataModelDynamoDBContextConfigIgnoreNullValues Did this page help you?   Yes   No    Tell us about it...
Property that directs DynamoDBContext to ignore null values on attributes during a Save operation. If the property is false (or not set), null values will be interpreted as directives to delete the specific attribute.
Declaration Syntax
C#
public Nullable<bool> IgnoreNullValues { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)