使用anglesharp linq查询获取Href属性 [英] Getting Href property with anglesharp linq query

问题描述

我正在尝试了解如何使用anglesharp.

I am trying to understand how to use anglesharp.

我根据示例创建了此代码( https://github.com/AngleSharp/AngleSharp ):

I made this code based on the example (https://github.com/AngleSharp/AngleSharp):

        // Setup the configuration to support document loading
        var config = Configuration.Default.WithDefaultLoader();
        // Load the names of all The Big Bang Theory episodes from Wikipedia
        var address = "http://store.scramblestuff.com/";
        // Asynchronously get the document in a new context using the configuration
        var document = await BrowsingContext.New(config).OpenAsync(address);
        // This CSS selector gets the desired content
        var menuSelector = "#storeleft a";
        // Perform the query to get all cells with the content
        var menuItems = document.QuerySelectorAll(menuSelector);
        // We are only interested in the text - select it with LINQ
        var titles = menuItems.Select(m => m.TextContent).ToList();

        var output = string.Join("\n", titles);

        Console.WriteLine(output);

这可以按预期工作，但是现在我想访问Href属性，但是我无法执行此操作:

This works as expected but now I want to access the Href property but I am unable to do this:

var links = menuItems.Select(m => m.Href).ToList();

当我在调试器中查看时，可以在结果视图中看到HtmlAnchorElement可枚举的对象具有Href属性，但显然我没有试图正确地访问它.

When I look in the debugger I can see in results view that the HtmlAnchorElement enumerable object has a Href property but I am obviously not trying to access it right.

文档中的所有示例均未显示正在访问的属性，因此我想它很简单，不需要显示，但我不知道如何做.

None of the examples in the documentation show a property being accessed so I guess it's something so simple that doesn't need to be shown but I am not seeing how to do it.

有人可以告诉我如何使用尖锐的角度访问html属性吗?

Can anyone show me how I should be accessing a html property with angle sharp?

当我将其转换为正确的类型时可以使用

This works when I cast it to the correct type

foreach (IHtmlAnchorElement menuLink in menuItems)
        {
            Console.WriteLine(menuLink.Href.ToString());
        }

我如何将其写为类似于titles变量的Linq语句?

How would I write that as a Linq statement like the titles variable?

推荐答案

替代 har07的答案:

var menuItems = document.QuerySelectorAll(menuSelector).OfType<IHtmlAnchorElement>();

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