第 4 版 (V4) 適用於 .NET 的 AWS SDK 已發行！

如需有關中斷變更和遷移應用程式的資訊，請參閱[遷移主題](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html)。

 [https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html)

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 使用 列出 AWS 資源 AWS CloudFormation
<a name="cfn-list-resources"></a>

此範例說明如何使用 適用於 .NET 的 AWS SDK 列出 CloudFormation 堆疊中的資源。此範例使用低階 API。應用程式不需要任何引數，但只會收集使用者登入資料可存取的所有堆疊資訊，然後顯示這些堆疊的相關資訊。

## 開發套件參考
<a name="w2aac19c15c15c13b5b1"></a>

NuGet 套件：
+ [AWSSDK.CloudFormation](https://www.nuget.org/packages/AWSSDK.CloudFormation/)

程式設計元素：
+ 命名空間 [Amazon.CloudFormation](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/NCloudFormation.html)

  [AmazonCloudFormationClient](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TCloudFormationClient.html) 類別
+ 命名空間 [Amazon.CloudFormation.Model](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/NCloudFormationModel.html)

  類別 [ICloudFormationPaginatorFactory.DescribeStacks](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/MICloudFormationPaginatorFactoryDescribeStacksDescribeStacksRequest.html)

  類別 [DescribeStackResourcesRequest](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TDescribeStackResourcesRequest.html)

  類別 [DescribeStackResourcesResponse](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TDescribeStackResourcesResponse.html)

  類別[堆疊](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TStack.html)

  類別 [StackResource](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TStackResource.html)

  類別[標籤](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/items/CloudFormation/TTag.html)

```
using Amazon.CloudFormation;
using Amazon.CloudFormation.Model;
using Amazon.Runtime;

namespace CloudFormationActions;

public static class HelloCloudFormation
{
    public static IAmazonCloudFormation _amazonCloudFormation;

    static async Task Main(string[] args)
    {
        // Create the CloudFormation client
        _amazonCloudFormation = new AmazonCloudFormationClient();
        Console.WriteLine($"\nIn Region: {_amazonCloudFormation.Config.RegionEndpoint}");

        // List the resources for each stack
        await ListResources();
    }

    /// <summary>
    /// Method to list stack resources and other information.
    /// </summary>
    /// <returns>True if successful.</returns>
    public static async Task<bool> ListResources()
    {
        try
        {
            Console.WriteLine("Getting CloudFormation stack information...");

            // Get all stacks using the stack paginator.
            var paginatorForDescribeStacks =
                _amazonCloudFormation.Paginators.DescribeStacks(
                    new DescribeStacksRequest());
            await foreach (Stack stack in paginatorForDescribeStacks.Stacks)
            {
                // Basic information for each stack
                Console.WriteLine("\n------------------------------------------------");
                Console.WriteLine($"\nStack: {stack.StackName}");
                Console.WriteLine($"  Status: {stack.StackStatus.Value}");
                Console.WriteLine($"  Created: {stack.CreationTime}");

                // The tags of each stack (etc.)
                if (stack.Tags.Count > 0)
                {
                    Console.WriteLine("  Tags:");
                    foreach (Tag tag in stack.Tags)
                        Console.WriteLine($"    {tag.Key}, {tag.Value}");
                }

                // The resources of each stack
                DescribeStackResourcesResponse responseDescribeResources =
                    await _amazonCloudFormation.DescribeStackResourcesAsync(
                        new DescribeStackResourcesRequest
                        {
                            StackName = stack.StackName
                        });
                if (responseDescribeResources.StackResources.Count > 0)
                {
                    Console.WriteLine("  Resources:");
                    foreach (StackResource resource in responseDescribeResources
                                 .StackResources)
                        Console.WriteLine(
                            $"    {resource.LogicalResourceId}: {resource.ResourceStatus}");
                }
            }

            Console.WriteLine("\n------------------------------------------------");
            return true;
        }
        catch (AmazonCloudFormationException ex)
        {
            Console.WriteLine("Unable to get stack information:\n" + ex.Message);
            return false;
        }
        catch (AmazonServiceException ex)
        {
            if (ex.Message.Contains("Unable to get IAM security credentials"))
            {
                Console.WriteLine(ex.Message);
                Console.WriteLine("If you are usnig SSO, be sure to install" +
                                  " the AWSSDK.SSO and AWSSDK.SSOOIDC packages.");
            }
            else
            {
                Console.WriteLine(ex.Message);
                Console.WriteLine(ex.StackTrace);
            }

            return false;
        }
        catch (ArgumentNullException ex)
        {
            if (ex.Message.Contains("Options property cannot be empty: ClientName"))
            {
                Console.WriteLine(ex.Message);
                Console.WriteLine("If you are using SSO, have you logged in?");
            }
            else
            {
                Console.WriteLine(ex.Message);
                Console.WriteLine(ex.StackTrace);
            }

            return false;
        }
    }
```