URL provider used multiple times

Hi,

We're running into an issue with a custom URL provider. The provider itself is simple, looking for "Country" (2 letter code) and "State" (2 letter code) to add "/us/california" to the URL instead of "&country=us&state=ca". It takes no parameters.

It all works fine when it's applied to a single page, but when I apply this to 2 different pages, both the frontend and backend become broken. I have to go through SSMS and delete one of the references to it. (check attachment for error)

Does anyone know what I might be doing wrong?

I'm attaching the source code in case anyone wants to take a closer look, but here's the code as well

using System.Collections;
using System.Collections.Generic;
using Dynamicweb.Ecommerce;
using Dynamicweb.Extensibility.AddIns;
using Dynamicweb.Extensibility.Editors;
using Dynamicweb.Frontend.UrlHandling;

namespace Dna.Winnebago.UrlProvider
{
    [AddInName("Country and State")]
    [AddInOrder(1000)]
    public class CountryAndState : UrlDataProvider, IDropDownOptions
    {
        public override IEnumerable<UrlDataNode> GetUrlDataNodes(UrlDataNode parent, UrlDataContext dataContext)
        {
            var nodes = new List<UrlDataNode>();

            foreach (var country in Services.Countries.GetCountries())
            {
                nodes.Add(new UrlDataNode()
                {
                    Id = $"CountryAndState_{country.Code2}",
                    ParentId = parent.Id,
                    PathName = $"{country.Code2}",
                    IgnoreInChildPath = false,
                    IgnoreParentPath = false,
                    QueryStringParameter = "Country",
                    QueryStringValue = country.Code2,
                    QueryStringExact = string.Empty,
                    IgnoreParentQuerystring = false
                });

                foreach (var state in country.Regions)
                {
                    nodes.Add(new UrlDataNode()
                    {
                        Id = $"CountryAndState_{country.Code2}_{state.RegionCode}",
                        ParentId = $"CountryAndState_{country.Code2}",
                        PathName = $"{state.Name}",
                        IgnoreInChildPath = false,
                        IgnoreParentPath = false,
                        QueryStringParameter = "State",
                        QueryStringValue = state.RegionCode,
                        QueryStringExact = string.Empty,
                        IgnoreParentQuerystring = false
                    });
                }
            }

            return nodes;
        }

        public Hashtable GetOptions(string dropdownName)
        {
            var options = new Hashtable();
            return options;
        }
    }
}

Additionally we noticed something odd. The Url provider only worked after the site recycled. In other words:

Placed the dll (site recycles automatically)
Go to page and set the URL provider
Go to test and does not work
Recycle the site again (now that it's assigned to the page)
Perform the same test - it works

I don't seem to have this experience with the Ecom

Thank you

Nuno Aguiar

Developer forum

URL provider used multiple times

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