多个关键字高亮显示

需求：搜索多个关键字  同时高亮显示

实现：

/// <summary>

/// controller向view中传关键词

/// </summary>
/// <param name="search"></param>
/// <returns></returns>

public async Task<ActionResult> News_2052( string[] search = null)
{
     search = search.Where(e => !string.IsNullOrEmpty(e)).ToArray();
     ViewBag.searchKeyWord = search;
     return View();
}            

@*视图 Index.cshtml 页面中*@

@foreach (var item in Model as List<CnpiecNRP.Areas.Maintain.ViewModels.AllNewsViewModel>)
        {
            <tr>
                <td>
                    @Html.HiddenFor(modelItem => item.Nid)
                    @Html.HiddenFor(modelItem => item.Lcid)
                    @if ((ViewBag.searchKeyWord as string[]).Length >= 1)
                    {
                        var title = item.SourceTitle;
                        var keywords = ViewBag.searchKeyWord as string[];
                        for (int i = 0; i < (ViewBag.searchKeyWord as string[]).Length; i++)
                        {
                            var current = keywords[i];
                            title = new System.Text.RegularExpressions.Regex(current).Replace(title, "<span style='background:yellow;font-weight: bold;'>" + current + "</span>");
                        }
                        @Html.Raw(title);
                    }
                    else
                    {
                        @Html.DisplayFor(modelItem => item.SourceTitle)
                    }
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.SourcePubDate, "MyDatetime")
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Enabled, "BoolTemplate")
                </td>
                <td>
                    <a asp-action="Edit" asp-route-id="@item.Nid" asp-route-lcid="@item.Lcid">编辑</a> |
                    <a asp-action="Delete" asp-route-id="@item.Nid" asp-route-lcid="@item.Lcid">删除</a>  |
                    <a class="ContentDetails">展开</a>
                </td>
            </tr>

 效果： 为保证可以看到搜索结果  所以只搜索了‘国际’和‘美国’