Update articles/components/tree-grid/index.adoc

Co-authored-by: Sergey Vinogradov <[email protected]>

Author: ugur-vaadin

articles/components/tree-grid/index.adoc

@@ -144,7 +144,7 @@ include::{root}/src/main/java/com/vaadin/demo/component/treegrid/TreeGridScrollT
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-To use this feature, the data provider needs to implement [methodname]#getParent()# and [methodname]#getItemIndex()#.
+`TreeDataProvider` supports this feature out of the box. For other data providers, you will need to implement [methodname]#getParent(T item)# and [methodname]#getItemIndex(T item, HierarchicalQuery query)#.
 
 === Scrolling to an Item by Path