GxView that represents the tree view.
|IGxCatalogEvents (esriCatalog)||Provides access to events that the catalog can fire.|
|IGxSelectionEvents (esriCatalog)||Provides access to events that the ArcCatalog selection can fire.|
|IGxTreeView||Provides access to members that control the GxTreeView.|
|IGxView||Provides access to members that control the GxView.|
The tree view is represented by GxTreeView, and shows a hierarchical organization of your data holdings, as parents and children. It is unlikely you will need to interact programmatically with the tree view, other than to force it to reveal a particular GxObject (through the IGxTreeView::EnsureVisible method), or to initiate a renaming operation (through BeginRename).