AWS SDK Version 3 for .NET
API Reference

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Rejects a request to attach a VPC to a transit gateway.

The VPC attachment must be in the pendingAcceptance state. Use DescribeTransitGatewayVpcAttachments to view your pending VPC attachment requests. Use AcceptTransitGatewayVpcAttachment to accept a VPC attachment request.


This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginRejectTransitGatewayVpcAttachment and EndRejectTransitGatewayVpcAttachment.

Namespace: Amazon.EC2
Assembly: AWSSDK.EC2.dll
Version: 3.x.y.z


public virtual Task<RejectTransitGatewayVpcAttachmentResponse> RejectTransitGatewayVpcAttachmentAsync(
         RejectTransitGatewayVpcAttachmentRequest request,
         CancellationToken cancellationToken


Type: Amazon.EC2.Model.RejectTransitGatewayVpcAttachmentRequest

Container for the necessary parameters to execute the RejectTransitGatewayVpcAttachment service method.

Type: System.Threading.CancellationToken

A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Return Value

The response from the RejectTransitGatewayVpcAttachment service method, as returned by EC2.

Version Information

.NET Core App:
Supported in: 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5

See Also