Been some time since I was working with the filtering bit but I think you have two options.

One is to index the content in the contentareas http://world.episerver.com/documentation/Items/Developers-Guide/EPiServer-Find/8/Integration/EPiServer-75/Indexing-content-in-a-content-area/

Or you could add the logic to the page during indexing and setting a bool property that you then filter on.

Hope that gives you some new angles to solving the issue.

/Petter

Okay, thanks, I´ll try that. But I think the FilterBuilder code needs to change some how since the field in the created filter was called GetContent.Name.ProductAreas.Items.Select$$string and there will still not be any property with that name even if I index the content in the ContentArea, right?

//Petra

Yes right you are. 

So going down option one and adding the content in the contentarea to the index should give a a json response that looks something like

{
...
"MainContentArea": {
"ReferencedPermanentLinkIds": [
"bla bla bla"
],
"Contents": [
{
....

"MasterLanguage.Name$$string": "sv",
"ContentTypeName$$string": "YourSuperDuperBlock",
"Status": 4,
...
}
... 
}

and in that case the filter would be 

Okay, thanks, the indexing of the items in the content area worked fine, but the Linq query didn´t work. Contents is marked as deprecated and the Select part didn´t work, I got an error saying "The type arguments for method 'Enumerable.Select<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>)' cannot be inferred from the usage. Try specifying the type arguments explicitly." and I couldn´t get it to compile without changing it to:

filterBuilder = filterBuilder.And(x => x.ProductAreas.Items.Select(c => c.GetContent().ContentTypeName()).Match(productArea));

This led me to getting a field name on the filter called GetContent.ContentTypeName.ProductAreas.Items.Select$$string instead of the previous which was GetContent.Name.ProductAreas.Items.Select$$string.

Starting to think that what I want to do isn´t possible...

//Petra

Right well that's a shame. 

Guess we have to do it on indexing then instead. 

Just add a prop to your pagetype that runs through the items and checks if you got a productArea or not. Then you should be able to use that prop in your querying.

/Petter

I haven´t tried that yet, but I still won´t get the names of the page types in the content area, just a true or false if there are items in the content area or not, right? I need to filter on the name of the page type in the content area.

//Petra

Well was thinking something like this.

   public bool HasSystemTagPageWithRightName
        {
            get
            {
                var result = false;
                
                if (ProductAreas != null && ProductAreas.Items.Any())
                {
                    foreach (var item in ProductAreas.Items)
                    {
                        var blockContent = item.GetContent() as SystemTagPage;
                        if (blockContent != null && !string.IsNullOrEmpty(blockContent.Name))
                        {
                            result = true;
                        }
                    }
                }
                
				return result;
            }
        }

Then in your filter you would just modify the builder to look at the bool

I suspect we are thinking of different things, with this solution it´s required that the product area to use in the filter is always the same and it´s not. I don´t know what product area to filter on until the end user chooses that in a select list, so one time it might be x and the next time y. So I can´t really have a property on the page type that does the matching.

//Petra

Right so I missunderstood what you where after.

But if you modify the code abow to just add the names of the SystemTagPage as a list of strings and then filter on that?

public List<string> SystemTagPages
     {
         get
         {
             var result = new List<string>();
              
             if (ProductAreas != null && ProductAreas.Items.Any())
             {
                 foreach (var item in ProductAreas.Items)
                 {
                     var blockContent = item.GetContent() as SystemTagPage;
                     if (blockContent != null && !string.IsNullOrEmpty(blockContent.Name))
                     {
                         result = result.Add(blockContent.Name)
                     }
                 }
             }
              
             return result;
         }
     }

Hmm, that would probably be a solution. Why didn´t I think of that :) Performance wise I won´t actually get rid of the iteration that I now do on the result after the Find question is finished since it´ll be in the property of the page type instead, but at least I´ll get rid of the ugly post-query Linq-filter which was my goal so, win!

I´ll try it out! Thanks Petter! (will mark as solution once verified :))