c# - 错误 "Non-generic method"IParentNode.QuerySelector (string) "cannot be used with type arguments. "

Question

我尝试使用 AngleSharp 库登录网站。我为此使用代码。

class Program
{
    const string sourceToSite = "https://mail.ru/";
    const string sourceToTarget = "https://e.mail.ru/messages/inbox/";

    static async void QueryToOrders()
    {
        var config = Configuration.Default.WithDefaultLoader().WithCookies();
        var context = BrowsingContext.New(config);
        await context.OpenAsync(sourceToSite);
        var check = context.Active.QuerySelector<IHtmlFormElement>("form#Auth").SubmitAsync(new { Login = EMAIL + "@mail.ru", Password = PASSWORD }).Result;
        var msgs = await context.OpenAsync(sourceToTarget);
    }
}

我得到一个错误:

"The error "Non-generic method" IParentNode.QuerySelector (string) "cannot be used with type arguments."

问题
如何修复错误？

Answer 1

我认为采用通用参数的 QuerySelector 形式是一种扩展方法。您需要为其所在的命名空间添加 using:

using AngleSharp.Extensions;