How convert IQueryable to IQueryable with Linq

Question

``` var page = pagesRepository.GetPages(); var categoryPages = page.ChildCategoryPages; var articlePages = categoryPages.Select(x => x.ChildPages); ``` `articlePages` is `IQueryable>`. but I need all pages in `IQueryable`. How to do this?

Accepted Answer

```
var articlePages = categoryPages.SelectMany(x => x.ChildPages);
```

How convert IQueryable<IQueryable<Page>> to IQueryable<Page> with Linq

Solution

Problem