From 014bebd38f2bcae2b5da607a91bd6d8e4600d019 Mon Sep 17 00:00:00 2001
From: Morten Christensen <unknown@kiln.example.com>
Date: Mon, 14 Jan 2013 13:27:40 -0100
Subject: [PATCH] Fixes U4-1465 by ensuring that a ContentType alias does not
 contain invalid characters nor spaces.

---
 src/Umbraco.Core/Models/ContentTypeBase.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Umbraco.Core/Models/ContentTypeBase.cs b/src/Umbraco.Core/Models/ContentTypeBase.cs
index b2a70d8d6a..f0dad5f280 100644
--- a/src/Umbraco.Core/Models/ContentTypeBase.cs
+++ b/src/Umbraco.Core/Models/ContentTypeBase.cs
@@ -4,6 +4,7 @@ using System.Collections.Specialized;
 using System.Linq;
 using System.Reflection;
 using System.Runtime.Serialization;
+using System.Text.RegularExpressions;
 using Umbraco.Core.Models.EntityBase;
 
 namespace Umbraco.Core.Models
@@ -153,7 +154,12 @@ namespace Umbraco.Core.Models
             get { return _alias; }
             set
             {
-                _alias = value;
+                //Ensures a valid ContentType alias
+                //Would have liked to use .ToUmbracoAlias() but that would break casing upon saving older/upgraded ContentTypes
+                var result = Regex.Replace(value, @"[^a-zA-Z0-9\s\.-]+", "", RegexOptions.Compiled);
+                result = result.Replace(" ", "");
+
+                _alias = result;
                 OnPropertyChanged(AliasSelector);
             }
         }