Highlighting With Sitecore and Solr

HighlightingWithSitecoreAndSolr.cshtml

@using Sitecore.ContentSearch
@using Sitecore.ContentSearch.Linq.Parsing
@using Sitecore.ContentSearch.SearchTypes
@using Sitecore.ContentSearch.SolrProvider.SolrNetIntegration
@using SolrNet
@using SolrNet.Commands.Parameters

@{
    const string searchField = "summary_t";
    const string searchValue = "traditional";

    var queryOptions = new QueryOptions
    {
        Highlight = new HighlightingParameters
        {
            Fields = new[] { searchField },
            BeforeTerm = "<em>",
            AfterTerm = "</em>"
        },
        ExtraParams = new List<KeyValuePair<string, string>>
        {
            new KeyValuePair<string, string>("hl.method", "unified")
        }
    };


    var index = ContentSearchManager.GetIndex(string.Format("sitecore_{0}_index", Sitecore.Context.Database.Name));
    using (var context = index.CreateSearchContext())
    {
        var results = context.Query<SearchResultWithSummary>(new SolrQueryByField(searchField, searchValue), queryOptions);

        foreach (var result in results)
        {
            var highlights = results.Highlights[result.Fields["_uniqueid"].ToString()];

            if (highlights.Any())
            {
                <ul>
                    @foreach (var highlight in highlights)
                    {
                        <li style="color: #696969">@result.Name</li>
                        <li>@Html.Raw(string.Join(",", highlight.Value))</li>
                    }
                </ul>        
            }
        }
    }
}