SelectMany attribute not working for IList<PageReference> type of

SelectMany attribute not working for IList<PageReference> type of property in page type

Avin

Vote:

Hi,

We have a scenario where we need to store multiple page references/content references in a property of a page type.

Here is sample code for the property-

[SelectMany(SelectionFactoryType = typeof(ContactPageSelectionFactory))]

public virtual IList MyContactLink { get; set; }

I have also created a class for property-

[PropertyDefinitionTypePlugIn]
public class PropertyPagesReference : PropertyListBase
{
}

SelectionFactory class -

public class ContactPageSelectionFactory : ISelectionFactory
{
private Injected ContentLocator { get; set; }

public IEnumerable GetSelections(ExtendedMetadata metadata)
{
var contactPages = ContentLocator.Service.GetContactPages();

return new List(contactPages.Select(c => new SelectItem {Value = c.PageLink, Text = c.Name}));
}
}

Above sample code is referring Alloy MVC template.

As SelectMany has Checkbox list in the backend property window which is coming up there but could not save the values.

Thanks,

Avi

Can someone help me in getting this resolved.

#182302

Sep 14, 2017 17:58

Scott Reed

Vote:

I'm not sure there's an editor out of the box for PageReferences, personally I've always just done with a ContentArea restricted down to PageReference types then they can just drag the pages in from the site navigiation tree. However Patrick Van Kleef has another solution here https://www.patrickvankleef.com/2015/02/22/multiple-page-picker-property-in-dojo/

#182325

Sep 15, 2017 10:43

Avin

Vote:

Thanks for the response.

Our reuirement is to display pages names in a check-box list so that user can select the pages.

#182327

Edited, Sep 15, 2017 11:05

Scott Reed

Vote:

Okay sorry I didn't read it properly. I've use ILists and SelectMany quite a few times before but usually the IList was connected to an editor descriptor, I'm wondering how the selection factory is being implictly converted to IList<PageReference>. Does it work if you change the type instead to string? Do you get a delimited list of references? If so you could create a propertly to split these and load them in to the PageReference collection.

#182328

Sep 15, 2017 11:26

Avin

Vote:

I am getting a string of all the page reference ids deliminated by ,. So it gives error when it tries to save the selected values.

Since I am new to Episerver development, it would be great help if you could provide the required changes as suggested in earlier post.

Thanks,

Avi

#182387

Sep 18, 2017 6:00

Scott Reed

Vote:

I don't think the IList code has been built to allow saving of page references only string data. I'd suggest the simplest solution is just saving as delimited strings by changing to string and then creating another virtual property returning an IEnumerable<PageReference> by splitting them and loading them via the ContentLoader service.

#182394

Sep 18, 2017 9:58