AWS SDK for .NET Documentation
EC2SecurityGroupId Property
AmazonAmazon.RDS.ModelRevokeDBSecurityGroupIngressRequestEC2SecurityGroupId Did this page help you?   Yes   No    Tell us about it...
The id of the EC2 security group to revoke access from. For VPC DB security groups, EC2SecurityGroupId must be provided. Otherwise, EC2SecurityGroupOwnerId and either EC2SecurityGroupName or EC2SecurityGroupId must be provided.
Declaration Syntax
C#
public string EC2SecurityGroupId { get; set; }

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