Try our conversational search powered by Generative AI!

Lee Crowe
Jun 26, 2012
(0 votes)

ElencySolutions.MultipleProperty v1.6 Released

A new version of my multiple property assembly is now available.

New Features

You are now able to add custom validation to singular or collection based entity properties.

Making use of the new validation functionality

Two new virtual methods have been added to the MultiplePropertyBase class.  These methods are named ValidateEntity and ValidateEntities.  Example validation code is below:

public class PropertyGalleryImages : MultiplePropertyBase<GalleryImages, GalleryImage>
     public override string ValidateEntity(GalleryImage entity)
         if (entity == null)
             return string.Empty;
         if (!entity.LinkUrl.StartsWith("http"))
            return "A link URL must start with http";


public class PropertyGalleryImages : MultiplePropertyBase<GalleryImages, GalleryImage>
     public override string ValidateEntities(GalleryImages entities)
         if (entities == null)
             return string.Empty;
         StringBuilder errorMessage = new StringBuilder();
         for (int i = 0; i < entities.Count; i++)
            GalleryImage galleryImage = entities[i];
            if (!galleryImage.LinkUrl.StartsWith("http"))
               errorMessage.AppendFormat("Item {0} link url is invalid, ", i + 1);
         return errorMessage.ToString().TrimEnd(“, “);


The easiest way to install the assembly is by installing it from the EPiServer nuget feed (once it has been made available).  But if you are not down with the cool kids you can download it from codeplex.  The assembly is built for EPiServer CMS 6 and onwards.

On the codeplex site you can also find some useful documentation and example code to get you familiar with what the property offers.  The example code is dependent on PageTypeBuilder.


As always feedback is greatly appreciated, if you have any suggestions for new features or changes I am happy to hear them.

Just twitter me @croweman or send me an email.

Jun 26, 2012


Please login to comment.
Latest blogs
Build a headless blog with Astro and Optimizely SaaS CMS

I’m a big fan of using the right tool for the right job. I’m also a big fan of Astro , for the right use case. Let's explore Astro to see what it's...

Jacob Pretorius | May 28, 2024

Microsoft announces Natural language to SQL

Finally, Microsoft launches "Natural language to SQL," after it has been available for several months in Optimizely CMS!

Tomas Hensrud Gulla | May 23, 2024 | Syndicated blog

Five easy ways to start personalizing your content right now

If you clicked on this article, you already know that getting the right message to the right person at the right time helps drive conversions and...

Kara Andersen | May 23, 2024

ExtendedCms.TinyMceEnhancements – serwer side webp support

Today I will introduce another small feature of TinyMceEnhancements plugin. The functionality is used to automatically detect whether a browser...

Grzegorz Wiecheć | May 22, 2024 | Syndicated blog