c# - 错误 CS1503 - 无法从 Microsoft.Extensions.Configuration.IConfigurationSection 转换为 System.Action<>

Question

我收到一个错误:

错误 CS1503 参数 2:无法从“Microsoft.Extensions.Configuration.IConfigurationSection”转换为“System.Action<>

当我使用Configure with Bind() 时，它正在工作。

var bandConfig = new BandSettings();
Configuration.GetSection("BandSettings").Bind(bandConfig );

但是使用下面的代码，我收到了上述错误。

我尝试了博客和其他论坛中提出的许多解决方案，
例如 - Getting value from appsettings.json in .net core

但仍然是同样的错误。我错过了什么吗？？

我有以下内容:
appsettings.json

"BandSettings":{ 
"UserID": "aTestUserID", 
"Password" : "aTestPassword" 
}

BandSettings.cs

public class BandWidthSettings
{
    public string UserID { get; set; }
    public string ApiToken { get; set; }
}

TestHelper.cs

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;

public static IConfiguration GetTestConfiguration()
         => new ConfigurationBuilder()
                       .AddJsonFile("appsettings.json")
                       .Build();

public IConfiguration Configuration { get; }

public TestHelper(IConfiguration configuration)
{
    Configuration = configuration;
}
public void ConfigureServices(IServiceCollection services)
{

    var config = new BandSettings();
    var bandSettingsSection = Configuration.GetSection("BandSettings");
    services.Configure<BandSettings>(bandSettingsSection);  //Error is getting on this line - bandSettingsSection
}

Answer 1

添加 NuGet 包 Microsoft.Extensions.Options.ConfigurationExtensions 获取扩展方法在哪里

services.Configure<BandSettings>(Configuration.GetSection("BandSettings"));

将工作。
引用: https://github.com/dotnet/AspNetCore.Docs/issues/18833