drag from scrollview to outside with screen bounds

i want drag content items outside of scroll + items cant drag outside of screen bounds

this is my drag class for limit object dragging inside screen bounds and this work fine for any object

 public class MyDrag : MonoBehaviour, IDragHandler
 {
 
     private RectTransform myRectTransform;
     private Vector2 guiSizeHalf;
     public Vector2 screenSize;
     private Vector2 targetRes;// Set this to whatever your target resolution is.
     private Vector2 screenReciprocal;
     private GameObject canvas;
 
     public void OnDrag(PointerEventData eventData)
     {
         Vector3 newPos = Vector3.zero;
 
         int deltaX = (int)((eventData.position.x - screenSize.x * 0.5f) * targetRes.x * screenReciprocal.x);
         deltaX = (int)(Mathf.Clamp(deltaX, (-targetRes.x * 0.5f + guiSizeHalf.x), (targetRes.x * 0.5f - guiSizeHalf.x)));
         newPos.x = deltaX;// deltaX value is assigned to newPos.x
 
         int deltaY = (int)((eventData.position.y - screenSize.y * 0.5f) * targetRes.y * screenReciprocal.y);
         deltaY = (int)Mathf.Clamp(deltaY, (-targetRes.y * 0.5f + guiSizeHalf.y), (targetRes.y * 0.5f - guiSizeHalf.y));
         newPos.y = deltaY;// deltaY value is assigned to newPos.y
 
         //The position of the dragged object is defined.
         myRectTransform.anchoredPosition = new Vector3(newPos.x, newPos.y, newPos.z);
 
 
     }
 
     void Start()
     {
         myRectTransform = (RectTransform)transform;
         DefineScreenValues();
     }
 
     void DefineScreenValues()
     {
         screenSize = new Vector2(Screen.width, Screen.height);
         screenReciprocal = new Vector2(1 / screenSize.x, 1 / screenSize.y);
         targetRes = new Vector2(720.0f, 1280.0f);
         guiSizeHalf = new Vector2(myRectTransform.rect.xMax, myRectTransform.rect.yMax);
     }
 
 }

for example bottle cant drag outside edge screen https://gfycat.com/delectabletattereddwarfmongoose

but i want do the same for items of scrollview and this code not working for that