This is in relation to Add custom attributes to the General Link field and have it work in Experience Editor and Content Editor

I would like to get Glass Mapper to automatically render the custom attributes the content editor sets on a General Link field.

This should handle internal ,external and anchor links and be able to render a checkbox field NoFollow and a Dataattributes field which is a single link.

href="/test" data-toggle="modal" data-target="#orderModal" data-backdrop="static" data-keyboard="false" rel="nofollow"

Is there a way I could customize Glass and the developers do not have to add code on each rendering?

1 Answer 1


Before implementing this solution you will need to download the latest nightly. I made a couple of changes to make it easier to solve this problem.

Ok, firstly create a sub-type to map the additional link attributes onto, e.g.:

public class MyLink:Glass.Mapper.Sc.Fields.Link{
   public string MyAttribute{get;set;}

Then create a new DataMapper:

public class SitecoreFieldMyLinkMapper : SitecoreFieldLinkMapper
    public SitecoreFieldMyLinkMapper()
        : base(new UrlOptionsResolver(), typeof(MyLink))


    public override object GetField(Sitecore.Data.Fields.Field field, SitecoreFieldConfiguration config,
        SitecoreDataMappingContext context)
        if (field == null || field.Value.Trim().IsNullOrEmpty()) return null;

        MyLink link = new MyLink();
        LinkField linkField = new LinkField(field);

        MapToLinkModel(link, linkField, config);

        link.MyAttribute = linkField.GetAttribute("something");

        return link;


Then create a HTML extension:

public static class HtmlExtensions
    public static string RenderMyLink<T>(this IGlassHtml html, T model, Expression<Func<T, object>> field,
        bool isEditable = false, string contents = null)
        var myLink = html.GetCompiled(field).Invoke(model) as MyLink;

        return html.RenderLink(model, field, new {data_type = myLink.MyAttribute}, isEditable, contents);

Again this only works with the latest nightly because I made some changes to support this. If you don't want to use the nightly you will need to copy and paste some code from the SitecoreFieldLinkMapper and the GlassHtml classes.

  • Mike thank you for the comment but the data attributes can be different per link and I really do not want the devs hardcoding it in the view.
    – ASura
    Commented Sep 20, 2017 at 16:13
  • Mike thank you for the updated answer. I was hoping not to do it via HTMLExtension but create a custom glass view which will handle it. In that case the developer just has to inherit it in the view. I might also want to do begin render link as well.
    – ASura
    Commented Sep 22, 2017 at 15:01
  • How would you inject the new mapper? I understand it needs to be done in GlassMapperScCustom.cs but I can't make it work. I tried resolver.DataMapperFactory.Insert(0, () => new SitecoreFieldMyLinkMapper()); and resolver.DataMapperFactory.Replace(20, () => new SitecoreFieldMyLinkMapper())
    – Linas
    Commented Feb 29 at 11:41

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