Episerver initializationmodule that sorts page and block types in alfabetical order.

ContentTypeReorderInitialization.cs

using System;
using System.Linq;
using System.Web;
using EPiServer.Framework;
using EPiServer.Framework.Initialization;
using EPiServer.DataAbstraction;
using System.Collections.Generic;
using EPiServer.ServiceLocation;

namespace AlloyDemoKit.Business.Initialization
{
    [InitializableModule]
    [ModuleDependency(typeof(EPiServer.Web.InitializationModule))]
    public class ContentTypeReorderInitialization : IInitializableModule
    {
        public void Initialize(InitializationEngine context)
        {
            OrderContentTypes();
        }

        public void Uninitialize(InitializationEngine context)
        {
            //Add uninitialization logic
        }

        private void OrderContentTypes()
        {
            var pageTypeRepository = ServiceLocator.Current.GetInstance<PageTypeRepository>();
            var blockTypeRepository = ServiceLocator.Current.GetInstance<BlockTypeRepository>();

            var startIndex = 90;
            var step = 10;

            var pTypes = PageTypesList();
            var bTypes = BlockTypesList();

            foreach (var pType in pTypes)
            {
                startIndex += step;
                var ptClone = pType.CreateWritableClone();
                ptClone.SortOrder = startIndex;
                pageTypeRepository.Save(ptClone);

            }
            startIndex = 90;

            foreach (var bType in bTypes)
            {
                startIndex += step;
                var btClone = bType.CreateWritableClone();
                btClone.SortOrder = startIndex;
                blockTypeRepository.Save(btClone);
            }
        }

        private IEnumerable<PageType> PageTypesList()
        {
            return ServiceLocator.Current.GetInstance<PageTypeRepository>().List().OrderBy(p => p.Name);
            //return ServiceLocator.Current.GetInstance<PageTypeRepository>().List().OrderBy(p => p.LocalizedFullName);
        }

        private IEnumerable<BlockType> BlockTypesList()
        {
            return ServiceLocator.Current.GetInstance<BlockTypeRepository>().List().OrderBy(p => p.Name);
            //return ServiceLocator.Current.GetInstance<BlockTypeRepository>().List().OrderBy(p => p.LocalizedFullName);
        }
    }
}