Since this upgrade, I've been struggling to get things to work properly. In my lack of understanding of the Identity Provider I have made changes that looked at the old yaf_prov_Membership table and things appeared to be working again until new people register and obviously they're not in this table.

I followed a tutorial about setting up Identity Provider and when I tried to log in, it then tried to create it's own AspNetUsers table and I can't figure out how to point it to the yaf tables instead. I have looked at various threads on this forum for help, but I can't seem to find anything that is reliably new.

Can anyone explain to me or even better provide a little example, of how to use the yaf Identity provider in a different project, pointing to the same database?

If i understand correctly you only need the login. All info on how to log in the user can be found in the source on the login page 

https://github.com/YAFNET/YAFNET/blob/29de30d4336d5ba8735ba31c32e33fa7c45dc0c2/yafsrc/YetAnotherForum.NET/Pages/Account/Login.ascx.cs#L139 

But you do know that you can run yaf inside your application, then you dont need an extra login you can just use the yaf login like in the YAF SampleApplication

this.Get()<IAspNetUsersHelper> saying that I can't call stuff from an interface. Maybe it's time to rewrite the site in c# but that's a huge job.

Yes it is technically possible to mix vb with c# in your app.

Change it to 

BoardContext.Current.Get<IAspNetUsersHelper>().ValidateUser(this.UserName.Text.Trim());

You can do that online with converters it only takes a few minutes.

One problem I can't see how to fix is that my search no longer works. I can see in the browser that it's calling an API page - but that page responds with:

SearchResults:

TotalRecords: 0

in the Json (the payload is) :

{

  "ForumId": 0,

  "PageSize": "5",

  "Page": 0,

  "SearchTerm": "(+karmann)"

}

I can't see any kind of search query hitting the database though. I have tried hitting the Re-Index Search button a few times, that didn't solve it.

The second question I have is that I would like to enable webp images on the forum. I have added the extension into the allowed file types and it's now possible to upload the images - but they are displayed as attachments not as thumbnails. Is it possible to make them show as thumbnails in the settings somewhere?

Many thanks!

Check the event log is the search database was created, or if there are any errors.

The image format is not supported, so there is no setting to enable it. But i can add it in the next release 3.1.15.

I don't see any errors. I do see a bunch of files in App_Data/search_index directory with recent datestamps on them. This folder wasn't in the Sample Application, so I created it. 

That would be fantastic, thanks!!

That is correct in the folder search_index is the search db stored. I checked your site and it works if i search for your user name like yourdomain.com//forum/Search?postedby=pre67vw

however in the members list there is no such user as "karmann" so of course it finds nothing.

Also there seems to be an issue with the lightbox.js which seems to block the search loading screen.

Sorry you're right, is misread the code. But does the the search term actually exists somewhere in the forum? i tried other search terms and it did show correct results.

I think I may have found the source of my problem, but I don't know how to fix it. My Task Manager is empty, so presumably when I hit the re-index, nothing is actually happening. Do you have any idea why it might be empty? Maybe a data issue, or permissions? 

But as i wrote before i can after testing the search for posts or topic titles works in your forum.