如何在c#中选择包含所有子项的dl标签

Question

我有一个问题dt，dd从打击 HTML 表中选择所有

<dl class="Grid Grid--multicol Grid--2col:40em Grid--4col:60em">

    <div class="Grid-cell u-flex u-flexOne u-flexRow">

        <dt> Item ID:</dt>

        <dd class="u-weightSemibold u-paddingL5px">72547664</dd>

    </div>

    <div class="Grid-cell u-flex u-flexOne u-flexRow">

            <dt> License:</dt>

            <dd class="u-weightSemibold u-paddingL5px">

                <a class="u-linkDodgerBlue js-infoLicenseString" href="" target="_blank">Standard</a>

            </dd>

    </div>

    <div class="Grid-cell u-flex u-flexOne u-flexRow">

            <dt> Usage:</dt>

            <dd class="u-weightSemibold">Commercial<span class="TooltipQuestionMark"></span></dd>

    </div>

    <div class="Grid-cell u-flex u-flexOne u-flexRow">

            <dt> Required Plugins:</dt>

            <dd class="u-weightSemibold u-paddingL5px">None</dd>

    </div>

    <div class="Grid-cell u-flex u-flexOne u-flexRow">

            <dt> Creation Tool:</dt>

            <dd class="u-weightSemibold u-paddingL5px">Autodesk</dd>

    </div>

    <div class="Grid-cell u-flex u-flexOne u-isHidden:0-60em"></div>

</dl>

我写这个

            i = 0; doc.DocumentNode.SelectNodes("//dl").Where(x => x.HasClass("Grid")).FirstOrDefault().SelectNodes(".//div").ToList().ForEach(x =>

            {

                result.Items.Add(new DownloadItem { Name = "specs-title", Index = i,    Type = DownloadItemType.Text, Value = x.SelectNodes(".//dt").FirstOrDefault().GetText() });

                result.Items.Add(new DownloadItem { Name = "specs",       Index = i++,  Type = DownloadItemType.Text, Value = x.SelectNodes(".//dd").GetText() });

            });

上面的代码只是抓取第一行 Item ID:| 72547664 什么我的问题，列出所有dt与dd信息

Answer 1

你的代码的问题是，当你第一次想dl用 class获取所有元素时Grid，你只用方法获取那种类型的 DOM 元素中的第一个FirstOrDefault()。i = 0; doc.DocumentNode.SelectNodes("//dl").Where(x => x.HasClass("Grid")).SelectNodes(".//div").ToList().ForEach(x =>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; result.Items.Add(new DownloadItem { Name = "specs-title", Index = i,&nbsp; &nbsp; Type = DownloadItemType.Text, Value = x.SelectNodes(".//dt").FirstOrDefault().GetText() });&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; result.Items.Add(new DownloadItem { Name = "specs",&nbsp; &nbsp; &nbsp; &nbsp;Index = i++,&nbsp; Type = DownloadItemType.Text, Value = x.SelectNodes(".//dd").GetText() });&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; });您必须删除FirstOrDefault()以获取适合您需求的所有元素。