Moves the item at the specified index to a new index in the collection.
You may call EnsureValidHierarchy()()()() after this operation completes to preserve hierarchical collection validity.
Namespace:
DlhSoft.Windows.ControlsAssembly: DlhSoft.HierarchicalData.LightWPF.Controls (in DlhSoft.HierarchicalData.LightWPF.Controls.dll)