<type> 的最佳重载方法匹配有一些无效参数

Question

点击以下代码行时出现错误：

using (_client = new RestClient("url", this))

错误： 'MyNamespace.RestClient(MyNamespace.MyPresenter, string)' 的最佳重载方法匹配有一些无效参数

我已经查看了一百万个“最佳重载方法匹配”线程，但我的问题似乎有所不同。详细的编译器输出表明它无法从以下位置转换：

MyPresenter [C:\path\to\class\file] 到 MyPresenter [C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\3d988ef4\66e82b30\assembly\dl3\995d0d63\042c184e_aae2cf01\ProjectName.DLL]

我不确定这里出了什么问题。类型相同。

这是我的完整代码（ASP.net 中的 MVP 模式）：

// default.aspx.cs (View class)
public partial class MyView : Page
{
    private readonly MyPresenter _presenter;

    public MyView()
    {
        _presenter = new MyPresenter(this);
    }

    public TextBox OutputText
    {
        get { return outputText; }
    }

    protected void Page_Load(object sender, EventArgs e) {}

    protected void GoButton_OnClick(object sender, EventArgs eventArgs)
    {
        _presenter.DoStuff();
    }
}

// default.aspx.designer.cs
public partial class MyView
{
    protected global::System.Web.UI.WebControls.Button goButton;
    protected global::System.Web.UI.WebControls.TextBox outputText;
}

// MyPresenter.cs
public class MyPresenter
{
    private RestClient _client;

    public MyPresenter(MyView view)
    {
        View = view;
    }

    public MyView View { get; private set; }

    public void DoStuff()
    {
        **using (_client = new RestClient("url", this))** // Error here
        {
            _client.DoClientStuff()
        }
    }
}

// RestClient.cs
public class RestClient
{
    private readonly MyPresenter _presenter;
    private readonly string _url;

    public RestClient(string url, MyPresenter presenter)
    {
        _presenter = presenter;
        _url = url;
    }

    public void DoClientStuff()
    {
        _presenter.View.OutputText.Text = "Doing client stuff";
    }
}

Answer 1

你的参数倒过来了

using (_client = new RestClient("url", this))

应该是

using (_client = new RestClient(this, "url"))