Delete old item versions in Sitecore

DeleteExtraVersions.aspx.cs

using Sitecore.Data;
using System;
using System.Linq;

namespace JamesRSkemp.Apps.OneOffs
{
	public partial class DeleteExtraVersions : System.Web.UI.Page
	{
		private Database db = Database.GetDatabase("master");

		protected void Page_Load(object sender, EventArgs e)
		{
			var itemId = new Sitecore.Data.ID("{8C4CCA29-6750-4DCF-A3F9-970CC5896427}");
			var versionsToKeep = 20;

			var item = db.GetItem(itemId);
			if (item == null)
			{
				form1.InnerHtml = "Item cannot be found.";
			}
			else
			{
				var itemVersions = item.Versions.GetVersions();
				form1.InnerHtml = string.Format("Total versions: {0}<br />", item.Versions.GetVersionNumbers().Length);
				form1.InnerHtml += string.Format("Item name: {0}<br />", item.Name);

				if (itemVersions.Length <= versionsToKeep)
				{
					form1.InnerHtml += "There are too few versions.<br />";
					return;
				}
				itemVersions = itemVersions
					.OrderByDescending(i => i.Version.Number)
					.Skip(versionsToKeep)
					// Now work with the oldest first.
					.Reverse()
					// Take a small number to be safe.
					.Take(10)
					.ToArray();

				item.Editing.BeginEdit();
				foreach (var itemVersion in itemVersions)
				{
					form1.InnerHtml += string.Format("{0} = {1}<br />", itemVersion.Version.Number, itemVersion.Statistics.Updated);
					itemVersion.RecycleVersion();
				}
				item.Editing.EndEdit();
			}
		}
	}
}

The main page can just be the default page that's created; it just needs an element to dump output into.

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