# Deleting specific multiple shared parameters in multiple families at once

**URL:** <https://forum.dynamobim.com/t/deleting-specific-multiple-shared-parameters-in-multiple-families-at-once/79171>\
**Category:** Revit\
**Tags:** revit, dynamo, orchid, crumple\
**Created:** [July 27, 2022, 11:26am UTC](https://forum.dynamobim.com/t/deleting-specific-multiple-shared-parameters-in-multiple-families-at-once/79171 "2022-07-27T11:26:10Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![GavinNicholls](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/gavinnicholls/32/190442_2.png) [@GavinNicholls](https://forum.dynamobim.com/u/GavinNicholls)\
**Post date:** [June 13, 2023, 12:02am UTC](https://forum.dynamobim.com/t/deleting-specific-multiple-shared-parameters-in-multiple-families-at-once/79171/14 "2023-06-13T00:02:11Z")

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Not familiar with family binding errors like this, but try the method at end of this thread maybe:

> [@Delete unused shared parameters?](https://forum.dynamobim.com/t/delete-unused-shared-parameters/12906/13):
>
> Hi, an example solution with Python (only for instance parameters project), using the HasValue property import sys import clr import System from System.Collections.Generic import List clr.AddReference('RevitAPI') import Autodesk from Autodesk.Revit.DB import \* import Autodesk.Revit.DB as DB clr.AddReference('RevitServices') import RevitServices from RevitServices.Persistence import DocumentManager from RevitServices.Transactions import TransactionManager doc = DocumentManager.Instance.Curren…

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