# Convert var to string, and string to element Dynamo
**URL:** https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339
**Category:** Revit
**Tags:** excel, dynamo
**Created:** [June 2, 2020, 9:04pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339 "2020-06-02T21:04:30Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@GJax89](https://forum.dynamobim.com/u/GJax89)
#### Post date: [June 2, 2020, 9:04pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/1 "2020-06-02T21:04:30Z")
Hi All,
So I am trying to pull data from excel into Dynamo, to update/create line styles.
It falls apart at the node “LineStyle.Create”, and kicks the following error:
“Warning: Internal error, please report: Dereferencing a non pointer. Internal error please report: Dereferencing a non-pointer
LineStyle.create expects argument of type(s) (string, int, Element, Color), but was called with (var, int,string, DSCoreColor).”
I can’t seem to figure out how to convert my list to a string, I don’t want it to have a suffix or separator, (at least not as far as I know) or how to convert my string into an element. I’m at a loss. Any ideas?
[LineStyleCreation.dyn](https://forum.dynamobim.com/uploads/short-url/hlJEXKbzMP0SlRT4HdXi2nScQS6.dyn) (136.3 KB)
Edited for typos
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### Author:  [@Kulkul](https://forum.dynamobim.com/u/Kulkul)
#### Post date: [June 3, 2020, 6:46am UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/2 "2020-06-03T06:46:35Z")
Hi @GJax89
Error says you need to connect LinePattern Element but you’re connecting it as String:
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### Author:  [@GJax89](https://forum.dynamobim.com/u/GJax89)
#### Post date: [June 3, 2020, 1:30pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/3 "2020-06-03T13:30:09Z")
Hello @Kulkul
Bimorphnodes claims this can be done with lists to batch create:
This is what I am trying to accomplish, Can this only be done with manual text entry in a code block, or is it possible to convert my string into a list for this purpose? I already have the names, and line patterns in string form, I am trying to convert them to something the node will read as intended.
My goal is to create these as a batch.
So how can I convert what is being called as a var to a string, and a string to element names, if at all?
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### Author:  [@Kulkul](https://forum.dynamobim.com/u/Kulkul)
#### Post date: [June 3, 2020, 1:49pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/4 "2020-06-03T13:49:14Z")
> [@GJax89](#):
>
> My goal is to create these as a batch.
> So how can I convert what is being called as a var to a string, and a string to element names, if at all?
Could you post your rvt and excel file here? I will show you how.
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### Author:  [@GJax89](https://forum.dynamobim.com/u/GJax89)
#### Post date: [June 3, 2020, 2:37pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/5 "2020-06-03T14:37:53Z")
Sure!
[TESTPROJ.rvt](https://forum.dynamobim.com/uploads/short-url/oiNJKUSnDEOvuU1mUQYhPPlYYCM.rvt) (3.4 MB)
[Linetypesfromtemplate.xlsx](https://forum.dynamobim.com/uploads/short-url/AvoVpKNM5nI6tpGu7DMPkHtJXr2.xlsx) (9.7 KB)
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### Author:  [@Kulkul](https://forum.dynamobim.com/u/Kulkul)
#### Post date: [June 3, 2020, 5:22pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/6 "2020-06-03T17:22:17Z")
Try this:
[LineStyleCreation\_For Greg.dyn](https://forum.dynamobim.com/uploads/short-url/8VCrC83zaa5C7iywstKoXdVlBVx.dyn) (151.1 KB)
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### Author:  [@GJax89](https://forum.dynamobim.com/u/GJax89)
#### Post date: [June 3, 2020, 6:27pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/7 "2020-06-03T18:27:18Z")
Hi @Kulkul
That doesn’t kick an error, But if I try to add a new type to the list, it does not get created in a project. Am I missing something? I really appreciate all your help!
Edit: To clarify I mean if I add data to the excel file in the same formatting
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### Author:  [@GJax89](https://forum.dynamobim.com/u/GJax89)
#### Post date: [June 11, 2020, 3:05pm UTC](https://forum.dynamobim.com/t/convert-var-to-string-and-string-to-element-dynamo/51339/8 "2020-06-11T15:05:28Z")
Hey, the script returns Null for 32/34 items. I am trying to get this to work, any ideas? Apologies for the delay, Work caught up with me.