A critical vulnerability was discovered in React Server Components (Next.js). Our systems remain protected but we advise to update packages to newest version. Learn More

Anders Hattestad
Apr 26, 2010
  10791
(0 votes)

Itera.MultiProperty and CMS 6

I tried to take the current Itera.MultiProperty project and recompile it with the CMS 6. It compiled without errors. But when you use it it throws and error complains about Multiple custom attributes of the same type found

The error is caused by some of the properties that are tagged with a

[GuiPlugIn(SortIndex = 70,DisplayName="Sort")]
public class PropertyFilterSort : PropertySortOrder, IHavePageCollectionFilter
{

and PropertySortOrder are tagged with

[Serializable, PageDefinitionTypePlugIn]
public class PropertyFileSortOrder : PropertyNumber
{

 
The old CMS 5 public static PlugInDescriptor Load(Type plugin) get the attributes with this line
descriptor = Load(plugin.ToString(), 
plugin.Assembly.GetName().Name);
but the new CMS 6 public static PlugInDescriptor Load(Type plugin) starts to get the attribute with this line:
customAttribute = Attribute.GetCustomAttribute(
plugin,
typeof(PlugInAttribute)
) as PlugInAttribute;

Since GuiPlugIn and PageDefinitionTypePlugIn inherits from PlugInAttributes the latest get two attributes….

The quick fix is to remove

List/Filters/PropertyFilterSort.cs

and remove PageDefinitionTypePlugIn from List/PropertyIteraPagesSelector.cs

from the project and recompile.

 

The problem is of course that old code depending on that it’s possible to have 2 different plugin attributes will not work.

Apr 26, 2010

Comments

Sep 21, 2010 10:33 AM

And the full code is

CMS6:
public static PlugInDescriptor Load(Type plugin)
{
PlugInDescriptor descriptor;
if (plugin.Namespace == "ASP")
{
descriptor = new PlugInDescriptor(-1, plugin.ToString(), plugin.Assembly.GetName().Name, true);
descriptor.IsAutoGenerated = true;
return descriptor;
}
string key = "PlugInDescriptor." + plugin.FullName;
descriptor = CacheManager.Get(key) as PlugInDescriptor;
if (descriptor == null)
{
PlugInAttribute customAttribute = Attribute.GetCustomAttribute(plugin, typeof(PlugInAttribute)) as PlugInAttribute;
if (customAttribute != null)
{
descriptor = Load(plugin.ToString(), plugin.Assembly.GetName().Name, customAttribute.DefaultEnabled);
}
else
{
descriptor = Load(plugin.ToString(), plugin.Assembly.GetName().Name);
}
CacheManager.Add(key, descriptor);
}
return descriptor;
}




CMS 5:
public static PlugInDescriptor Load(Type plugin)
{
PlugInDescriptor descriptor;
if (plugin.Namespace == "ASP")
{
descriptor = new PlugInDescriptor(-1, plugin.ToString(), plugin.Assembly.GetName().Name, true);
descriptor.IsAutoGenerated = true;
return descriptor;
}
string key = "PlugInDescriptor." + plugin.FullName;
descriptor = CacheManager.Get(key) as PlugInDescriptor;
if (descriptor == null)
{
descriptor = Load(plugin.ToString(), plugin.Assembly.GetName().Name);
CacheManager.Add(key, descriptor);
}
return descriptor;
}
/ Anders Hattestad

Sep 21, 2010 10:33 AM

added and remove PageDefinitionTypePlugIn from List/PropertyIteraPagesSelector.cs
/ Anders Hattestad

Sep 21, 2010 10:33 AM

Have registered this as an bug
/ Anders Hattestad

Aug 15, 2011 05:58 PM

Hi Anders.
The Itera.multiproperty is throwing and warning message on a PropertyMulitBase when adding multiple items:
"are you sure you want to navigate from this page?"

I added the following code to the method PropertyMulitBaseControl.AddButton(...)

Button add = new Button();
ScriptManager current = ScriptManager.Current;
if (current != null)
current.AddEventListener(add, new DisablePageLeaveEvent(EventType.Submit | EventType.Click));

with no success. Can you advice please?
Thanks

Sep 19, 2011 02:44 PM

Hi Anders,

We are having a problem with the MultiProperty project, similar to Ticket #160 (assigned defect) on epicode.

On a particular page type, we have a MultiProperty with about 4 properties inside it, as well as two properties using the TinyMCE editor. We can add up to 4 instances of the MultiProperty without any problem.

However, when we add a 5th instance, the TinyMCE editors will disappear (except for the words 'Paragraph' and 'Styles')

Deleting the 5th instance results in the TinyMCE editor being displayed correctly once again.

This only happens in IE (8) but not in Firefox.

Do you have any idea how to fix this?

Kristina Hedrén
Kristina Hedrén Nov 15, 2011 02:00 PM

Hi Anders
I also have some problems with MultiProperty and CMS 6. In the editor when clicking save, the property is not saved. It works fine using "Save and View" or "Save and Publish" but when I click save the page is reloaded, the property is also displayed but without values. Any ideas?

Mar 8, 2012 12:08 PM

thanks guys. that helped me out a lot..

Jan 31, 2013 02:14 PM

I have the same problem as Kristina. It only happens when you're logged in with a non-admin account. Found any solution?

Please login to comment.
Latest blogs
Looking back at Optimizely in 2025

Explore Optimizely's architectural shift in 2025, which removed coordination cost through a unified execution loop. Learn how agentic Opal AI and...

Andy Blyth | Dec 17, 2025 |

Cleaning Up Content Graph Webhooks in PaaS CMS: Scheduled Job

The Problem Bit of a niche issue, but we are building a headless solution where the presentation layer is hosted on Netlify, when in a regular...

Minesh Shah (Netcel) | Dec 17, 2025

A day in the life of an Optimizely OMVP - OptiGraphExtensions v2.0: Enhanced Search Control with Language Support and Synonym Slots

Supercharge your Optimizely Graph search experience with powerful new features for multilingual sites and fine-grained search tuning. As search...

Graham Carr | Dec 16, 2025

A day in the life of an Optimizely OMVP - Optimizely Opal: Specialized Agents, Workflows, and Tools Explained

The AI landscape in digital experience platforms has shifted dramatically. At Opticon 2025, Optimizely unveiled the next evolution of Optimizely Op...

Graham Carr | Dec 16, 2025

Optimizely CMS - Learning by Doing: EP09 - Create Hero, Breadcrumb's and Integrate SEO : Demo

  Episode 9  is Live!! The latest installment of my  Learning by Doing: Build Series  on  Optimizely Episode 9 CMS 12  is now available on YouTube!...

Ratish | Dec 15, 2025 |

Building simple Opal tools for product search and content creation

Optimizely Opal tools make it easy for AI agents to call your APIs – in this post we’ll build a small ASP.NET host that exposes two of them: one fo...

Pär Wissmark | Dec 13, 2025 |