Get Level Elevation From selected windows form combobox

[zrodgersTSSSU]

So im trying to get the elevation of the level that i select in my windows form. I have it populating all the levels but now i cant figure out how to get the level elevation back.

CODE IN FORM:

CODE IN SCRIPT: 

i just need the elevation from the selected level. Thanks ahead of time for any help!

[jeremy_tammik · Accepted solution]

You are passing in the level name as a string to the document GetElement method.

That will not work. GetElement expects either an ElementId or a UniqueId argument:

https://www.revitapidocs.com/2021.1/8760be74-50fd-6809-aec6-3cb168d03ea5.htm

The latter is represented by a string, so GetElement tries to interpret your level name as a string.

You need to store either the level element id or unique id in your combo box as well.

You can attach it as additional data to each combo box entry.

[zrodgersTSSSU · Accepted solution]

Thank you for your response. This is what ended up working for me. 

FORM:

COMMAND: