public static IScriptCommand StartShellDrag(string iShellDragVariable = "{DragDrop.SupportDrag}", IScriptCommand nextCommand = null)
{
return
//If CanDrag (ItemUnderMouse is selected), Check and set IsDraggingProperty to true.
(ScriptCommands.SetPropertyValue(iShellDragVariable, (ISupportDrag d) => d.IsDraggingFrom, true,
HubScriptCommands.AssignDragMethod(QueryDrag.DragMethodKey,
//Initialize shell based drag drop
HubScriptCommands.QueryDrag(iShellDragVariable, "{DragResult}",
//Reset IsDragging property.
ScriptCommands.SetPropertyValue(iShellDragVariable, (ISupportDrag d) => d.IsDraggingFrom, false,
//Reset IShellDrag variable.
ScriptCommands.Assign(iShellDragVariable, null, false,
nextCommand))))));
}