This question is locked. New answers and comments are not allowed.
Hello.
I have next structure of code:
ObservableItemCollection<Item> Items;
QueryableCollectionView CollectionView = new QueryableCollectionView(Items);
GridView grdMain;
grdMain.ItemsSource = CollectionView;
class Item
{
public strng Name;
public List<Item> Child;
}
I need to filter CollectionView collection such as: Item => Child.Any(a => a.ID == 100).
In other words: Select Item Where Child contain Item with ID == 100.
How can I do it? I thought to use FilterDescriptor, but don't know how to create expression.
I have next structure of code:
ObservableItemCollection<Item> Items;
QueryableCollectionView CollectionView = new QueryableCollectionView(Items);
GridView grdMain;
grdMain.ItemsSource = CollectionView;
class Item
{
public strng Name;
public List<Item> Child;
}
I need to filter CollectionView collection such as: Item => Child.Any(a => a.ID == 100).
In other words: Select Item Where Child contain Item with ID == 100.
How can I do it? I thought to use FilterDescriptor, but don't know how to create expression.
1 Answer, 1 is accepted
0
Hello,
Ross
the Telerik team
Your only chance would be to use the generic version of the FilterDescriptor where you can write any valid lambda expression that would be used for filtering.
You can also take a look at my blog post for a similar implementation.
I hope this helps.
Ross
the Telerik team
Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>