Use either Get descendents or recursive get children like

http://world.episerver.com/forum/developer-forum/-EPiServer-75-CMS/Thread-Container/2014/6/Does-GetDescendents-hit-the-cache/

FindPagesByCriteria is also possible. 

All of these take pretty much memory and cpu so careful if you are displaying then for end users.

For categories, just check the Category property on page which is a collection of ids basically. Match against the one you want..

http://world.episerver.com/documentation/Class-library/?documentId=cms/9/56D12925

And use FilterForVisitor to get rid of unpublished pages and access rights...

Hi, the sample supplied looks for pages I would like to get all the Media assets from the Assets folder(s)

Jon

Same API after 7.5 when assets were migrated from old VPP and unified file system to being IContent...

So you can traverse the media files using getchildren etc...

Hi,

I have folders inside folders - is this something that this can do. Has this been done before regarding Media Assets? I cant seem to get it to loop the recursive folders.

Thanks

Jon

Yup that's the idea. GetChildren only takes the first level. GetDescendants get everything below not matter how many folders you have nested. A recursive GetChildren will do that as well. 

Might be that you are filtering on type that the folder doesn't implement. Try shifting type in call to IContent...everything inherits from that one. Folder is not MediaData...so it will filter out those if you use the above code...

I got the GetDecendants bit working but there doesnt seem to be a way to filter out the items on Category - for example if an item is tagged with multiple Categories etc.

Jon

You can cast those content items to ICategorizable if they have support for containing categories. If they do, use the property above to get the list of categories and filter away :)

Hope that helps...

I see :)

I am currently using this:

var list = contentRepository.GetDescendents(SiteDefinition.Current.GlobalAssetsRoot)
                               .Select(contentRepository.Get<IContent>)
                               .ToList();

Which is great as it is bringing back all the assests.

If I do a loop of list:

foreach (var dd in list)
                {
                    ICategorizable content = contentRepository.Get<IContent>(dd.ContentLink) as ICategorizable;

                }

I can get the Categories which is ok. But what I would ideally like to do is filter the categories in my first call where Im creating "list" as I am currently creating a front end search and there could be 500 or more items.

I hope thsi makes sense,

jon

.something like 

...

.Select(contentRepository.Get<IContent>)
.Where(c=>c as ICategorizable !=null)
.Where(c=>((ICategorizable)c).Category.Any(cat=>cat.Id ==categoryId))
.ToList()

.OfType is a nice extension too which will simplify somewhat the above

Hi,

How do you get all the categories from Admin > Config > Edit Categories? I have a lot of categories or which are children of children.

I am currently using:

 var categoryRepository = ServiceLocator.Current.GetInstance<CategoryRepository>();
                Category rootCategory = categoryRepository.GetRoot();

                CategoryCollection childCategories = rootCategory.Categories;

but this is only bringing back the top categories.

Thanks again for all your help

Jon

Apologies - I can use:

 var categoryRepository = ServiceLocator.Current.GetInstance<CategoryRepository>();
                Category rootCategory = categoryRepository.GetRoot();

                var childCategories = rootCategory.GetList();

Thanks

Jon

Last question - I promise :)

THe code above is going into a Block which will filter out assets in relation to the page they are on. For example a page can have a categoryList and I need to get all the assets from the asset library that have been tagged with the same tags as the page.

So Im using:

 var pageRouteHelper = EPiServer.ServiceLocation.ServiceLocator.Current.GetInstance<EPiServer.Web.Routing.PageRouteHelper>();
            PageReference currentPageLink = pageRouteHelper.PageLink;
            PageData currentPage = pageRouteHelper.Page;
            var categoryList = currentPage.Category; //get the current pages categories

To get my current page categgories

and Im using:

var list = contentRepository.GetDescendents(SiteDefinition.Current.GlobalAssetsRoot)
.Select(contentRepository.Get<IContent>)
.Where(c => c as ICategorizable != null)
.Where(c => ((ICategorizable)c).Category.Any(cat => cat.Equals(6))) // category ID 6
.ToList();

To get the assets - but I need to change the cat.Equals(6) to something that filters all the page categories.

I hope this makes sense,

jon

Cat=>pagecategories.MemberOf(Cat)... 

something like that? Where page categories is the category property on block/page...

And of course, this solution will only work if you have a limited amount of items. For larger amounts you will need a search index. EPiServer Find is your best friend there where you can easily build similar questions which have much much better performance.