Umbraco - Converts a property's description using markdown

MarkdownPropertyDescriptions.cs

using Umbraco.Core;
using Umbraco.Web.Editors;

namespace Our.Umbraco
{
    public class MyBootstrapper : ApplicationEventHandler
    {
        protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            EditorModelEventManager.SendingContentModel += (sender, e) =>
            {
                var markdown = new MarkdownSharp.Markdown()
                {
                    DisableHeaders = true,
                    DisableImages = true
                };

                foreach (var property in e.Model.Properties)
                {
                    if (string.IsNullOrWhiteSpace(property.Description) == false)
                    {
                        property.Description = markdown
                            .Transform(property.Description)
                            .Replace("<a href=", "<a target=\"_blank\" href=")
                            .Replace("</p>\n\n<p>", "</p><p>");
                    }
                }
            };
        }
    }
}

Thanks to Ian on the forum who let me know about the EditorModelEventManager events.

@leekelleher feel free to update the official docs about it :)

Btw, this idea started way back: http://issues.umbraco.org/issue/U4-2670, there's also this: http://issues.umbraco.org/issue/U4-8530