# Delete Parameter Value

**URL:** <https://forum.dynamobim.com/t/delete-parameter-value/96582>\
**Category:** Revit\
**Tags:** dynamo\
**Created:** [December 20, 2023, 6:11pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582 "2023-12-20T18:11:14Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tamasorosz](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/tamasorosz/32/81944_2.png) [@tamasorosz](https://forum.dynamobim.com/u/tamasorosz)\
**Post date:** [December 20, 2023, 6:11pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582/1 "2023-12-20T18:11:14Z")

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Hello Everyone,  
Is there a way to delete parameter value in Revit? I have an integer parameter, and I need it to be empty, instead of having a 0 there.  
I can not remove the parameter because I would lose data.

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**Author:** ![pyXam](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/pyxam/32/163009_2.png) [@pyXam](https://forum.dynamobim.com/u/pyXam)\
**Post date:** [December 20, 2023, 7:32pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582/2 "2023-12-20T19:32:39Z")

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Does replace with “” work for you?

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**Author:** ![Hamish](https://avatars.discourse-cdn.com/v4/letter/h/a5b964/32.png) [@Hamish](https://forum.dynamobim.com/u/Hamish)\
**Post date:** [December 20, 2023, 7:58pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582/3 "2023-12-20T19:58:12Z")

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From memory if it’s an int/length parameter in Revit then once it’s been assigned a value you can’t set it back to null or empty, only 0. If I’m correct, is a potential workaround to create the parameter as a text parameter, then use Dynamo to populate the values and set the 0s to “”? No good if you’ve got any math based formulae or calculate values based on that parameter though…

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**Author:** ![Daan](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daan/32/82246_2.png) [@Daan](https://forum.dynamobim.com/u/Daan)\
**Post date:** [December 20, 2023, 8:03pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582/4 "2023-12-20T20:03:45Z")

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Are you able to set the value to `null` ?  
If not, is there a way to remove the value directly through Revit without using Dynamo? If thats not possible it is (most often) also not possible through Dynamo.

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**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\
**Post date:** [December 20, 2023, 8:16pm UTC](https://forum.dynamobim.com/t/delete-parameter-value/96582/5 "2023-12-20T20:16:15Z")

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I believe there is a package (check Clockwork, Springs, Steamnodes, and [Archi-Lab](https://forum.dynamobim.com/t/revit-2022-dynamo-2-10-package-not-showing-up-and-icons-missing/62933/7?)) to ‘clear’ a parameter value.

There are some limits to what parameters you can remove the values from though.