A critical vulnerability was discovered in React Server Components (Next.js). Our systems remain protected but we advise to update packages to newest version. Learn More

Per Magne Skuseth
Mar 21, 2014
  4687
(5 votes)

Add some color to your UI

Here is a little trick to spice up the editorial view when using simple selection lists in EPiServer:
The SelectItem Text property in selection factories can contain html, which means that you can easily make the editorial controls look a bit more exciting.

public class BlockColorSelectionFactory : ISelectionFactory
{
    public IEnumerable<ISelectItem> GetSelections(ExtendedMetadata metadata)
    {
        yield return new SelectItem()
        {
            Text = "<span class='colorselector blue'></span>Blue",
            Value = "blue"
        };
        yield return new SelectItem()
        {
            Text = "<span class='colorselector white'></span>White",
            Value = "white" 
        };
        yield return new SelectItem()
        {
            Text = "<span class='colorselector gray'></span>Gray",
            Value = "dark"
        };
        yield return new SelectItem()
        {
            Text = "<span class='colorselector black'></span>Black",
            Value = "black"
        };
    }
}
In this case, the colorselector css classes are defined in a style sheet that is registered as a client resource.
 
[SelectOne(SelectionFactoryType = typeof(BlockColorSelectionFactory))]
public virtual string ColorTheme { get; set; }
 
 color
 
Here is another example, where I’ve used an image tag:
public class LanguageSelectionFactory : ISelectionFactory
{
    public IEnumerable<ISelectItem> GetSelections(ExtendedMetadata metadata)
    {
        var languageBranches = ServiceLocator.Current.GetInstance<ILanguageBranchRepository>().ListEnabled();
        return languageBranches.Select(branch => new SelectItem()
        {
            Text = string.Format("<img class='flag' src='/App_Themes/Default/Images/flags/{0}.gif'/>{1}", branch.LanguageID, branch.Name),
            Value = branch.LanguageID
        });
    }
}

flags

… And when using SelectMany:

 langz

Mar 21, 2014

Comments

Mari Jørgensen
Mari Jørgensen Mar 21, 2014 01:29 PM

Nice! I like it! :)

Jan 28, 2015 04:42 PM

I can't get this to work in the latest version.
It just displays the HTML markup instead of an image.

Any ideas?

Jul 31, 2015 04:07 PM

I've got the same issue as Kristoffer Av Ekenstam , did you ever find a resolution?

Per Magne Skuseth
Per Magne Skuseth Oct 8, 2015 04:21 PM

This will only work for CMS 7.x, I'm afraid.

Please login to comment.
Latest blogs
Building simple Opal tools for product search and content creation

Optimizely Opal tools make it easy for AI agents to call your APIs – in this post we’ll build a small ASP.NET host that exposes two of them: one fo...

Pär Wissmark | Dec 13, 2025 |

CMS Audiences - check all usage

Sometimes you want to check if an Audience from your CMS (former Visitor Group) has been used by which page(and which version of that page) Then yo...

Tuan Anh Hoang | Dec 12, 2025

Data Imports in Optimizely: Part 2 - Query data efficiently

One of the more time consuming parts of an import is looking up data to update. Naively, it is possible to use the PageCriteriaQueryService to quer...

Matt FitzGerald-Chamberlain | Dec 11, 2025 |

Beginner's Guide for Optimizely Backend Developers

Developing with Optimizely (formerly Episerver) requires more than just technical know‑how. It’s about respecting the editor’s perspective, ensurin...

MilosR | Dec 10, 2025