Hi Darren,

There is a package that can help with this, it allows you to pick different pages in the content tree to use as your 404, which also allows editors to customise the 404 page as well.

https://marketplace.umbraco.com/package/hotchilli.umbraco.pagenotfound

This would save you modifying config or writing your own code, but it doesn't mean the 404's need to be set via the CMS.

Thanks

Nik

I have built a solution:

Config File: "Redirects": { "Site1": "1093,1753", "Site2": "1203,1754", "Site3": "1303,1755" },

using Umbraco.Cms.Core.Composing;

namespace UmbracoCMS.AppCode.404controller { public class RegisterPageNotFoundContentFinderComponent : IComposer { public void Compose(IUmbracoBuilder builder) { builder.SetContentLastChanceFinder

using Umbraco.Cms.Core.Routing; using Umbraco.Cms.Core.Web;

namespace UmbracoCMS.AppCode.404controller { public class PageNotFoundContentFinder : IContentLastChanceFinder { private readonly IUmbracoContextAccessor _umbracoContextAccessor; private readonly IConfiguration _configuration;

    List<ErrorList> _errors;

    public PageNotFoundContentFinder(
            IUmbracoContextAccessor umbracoContextAccessor,
             IConfiguration configuration)
    {
        _umbracoContextAccessor = umbracoContextAccessor;
        _configuration = configuration;
    }

    public Task<bool> TryFindContent(IPublishedRequestBuilder request)
    {
        _errors = new List<ErrorList>();
        var domainsRedirect = _configuration.GetSection("Redirects");
        var domain = request.Domain;
        var nodeid = domain.ContentId;

        addtoList(domainsRedirect.GetValue<string>("site1").Split(","));
        addtoList(domainsRedirect.GetValue<string>("site2").Split(","));
        addtoList(domainsRedirect.GetValue<string>("site3").Split(","));

        var selectedID = from item in _errors
                         where item.nodeid == nodeid
                         select item.errornodeid;

        var errorNode = selectedID.FirstOrDefault();

        var notFoundPage = _umbracoContextAccessor.GetRequiredUmbracoContext().Content.GetById(errorNode);

        request.SetIs404();
        request.SetPublishedContent(notFoundPage);

        return Task.FromResult(true);
    }

    private void addtoList(string[] item)
    {
        ErrorList _error = new ErrorList();

        _error.nodeid = Int32.Parse(item[0]);
        _error.errornodeid = Int32.Parse(item[1]);
        _errors.Add( _error );
    }


}

}

namespace UmbracoCMS.AppCode.404controller { public class ErrorList { public int nodeid { get; set; } public int errornodeid { get; set; }

}

}

Managed to get this to work.

A bit of a hack but it works.

I have the same question, but I am on Umbraco Cloud and our project uses the Igloo Theme, so we already have a content picker in the settings document type for each site, and we have selected our 404 page.

However, the theme is only recognizing one of the set 404 pages. I am a beginner and don't know what is causing this not to work out of the box with the theme.

I have tinkered with the host names so our main site is set to "/" and a sub-site is set to /xx/.

I tried to add in the appsettings file

{ "Umbraco": { "CMS": { "Content": { "Error404Collection": [ { "Culture": "default", "ContentXPath": xxxxxx" } ] } } } }

But nothing seemed to work. Is this approach appropriate for use with Igloo theme? I just have to get the right code?

It becomes difficult as we have 3 environments, so I have to use Xpath and knowing how to define the sites is hard.

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