# Get Gridlines for Specific Curtain Walls

**URL:** <https://forum.dynamobim.com/t/get-gridlines-for-specific-curtain-walls/3649>\
**Category:** Packages\
**Created:** [April 6, 2016, 12:44am UTC](https://forum.dynamobim.com/t/get-gridlines-for-specific-curtain-walls/3649 "2016-04-06T00:44:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Krishna\_Duddumpudi](https://avatars.discourse-cdn.com/v4/letter/k/779978/32.png) [@Krishna\_Duddumpudi](https://forum.dynamobim.com/u/Krishna_Duddumpudi)\
**Post date:** [April 6, 2016, 12:44am UTC](https://forum.dynamobim.com/t/get-gridlines-for-specific-curtain-walls/3649/1 "2016-04-06T00:44:26Z")

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Hi All I’m trying to work out how to get an array of grid lines of a selected curtain wall in Revit.

I’ve got this far with the Python node… keeps returning null…

Have been using this post as a starting reference : [http://dynamobim.org/forums/topic/create-a-curtain-grid-elements/](http://dynamobim.org/forums/topic/create-a-curtain-grid-elements/)

any help would be greatly appreciated!

Thank you 🙂

 ![Gridline Access](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/6/66ccce98ea253334e694f875c568bcde13bb0e2a.jpg)

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**Author:** ![Bo\_Steadman](https://avatars.discourse-cdn.com/v4/letter/b/c89c15/32.png) [@Bo\_Steadman](https://forum.dynamobim.com/u/Bo_Steadman)\
**Post date:** [April 6, 2016, 6:59pm UTC](https://forum.dynamobim.com/t/get-gridlines-for-specific-curtain-walls/3649/2 "2016-04-06T18:59:40Z")

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[http://dynamobim.org/forums/topic/manipulating-curtain-gridlines/#post-30856](http://dynamobim.org/forums/topic/manipulating-curtain-gridlines/#post-30856)

&nbsp;

If you want the V (vertical) gridlines, you can change the “GetUGridlineIds” method to “GetVGridlineIds.”

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<div class="post-metadata">

**Author:** ![Krishna\_Duddumpudi](https://avatars.discourse-cdn.com/v4/letter/k/779978/32.png) [@Krishna\_Duddumpudi](https://forum.dynamobim.com/u/Krishna_Duddumpudi)\
**Post date:** [May 3, 2016, 5:28pm UTC](https://forum.dynamobim.com/t/get-gridlines-for-specific-curtain-walls/3649/3 "2016-05-03T17:28:15Z")

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Fantastic, Thanks a lot for your reply! it works perfectly!