topic Re: Rotation Expression: Arcade expression issue in .NET Maps SDK Questions

Rotation Expression: Arcade expression issue

StephM — Mon, 02 May 2022 09:01:05 GMT

Hello,

I'm developing mobile app and some featurelayers contains a column "SYMB_ROTATION" that represents the angle the symbol need to do.

for now I simply create a UniqueValueRenderer and apply the rotation like that:

assetRenderer.RotationExpression = $"[{rotationName}]-90";

Where rotationName is the column of the rotation value.

I also tried with the ArcadeExpression but it doesn't work

Maybe I miss something.

Does someone has a working sample of cod ?

Thanks in advance for your help.
Best regards

Re: Rotation Expression: Arcade expression issue

PreetiMaske — Mon, 02 May 2022 18:00:52 GMT

Try passing the exact field name in square brackets like [SYMB_ROTATION]

Re: Rotation Expression: Arcade expression issue

StephM — Wed, 04 May 2022 06:09:20 GMT

Hello @PreetiMaske,
thanks for your reply.

My problem is the "-90" that seems not applied...

The rotation is done, it's the expression itself that doesn't work.

Thanks .
S.

Re: Rotation Expression: Arcade expression issue

PreetiMaske — Wed, 04 May 2022 22:57:50 GMT

Hello @StephM

Currently RotationExpression only accepts a fieldname or a value. It is not equipped to accept an arcade expression. I don't know your use case but an alternate is to set rotation using an arcade expression on your data (in ArcGIS Pro) and publish that data with visual variable. Visual variable on renderers are honored in runtime and you will be able to see custom expression applied on the features.

Here are some helpful resources:

https://pro.arcgis.com/en/pro-app/2.7/help/mapping/layer-properties/vary-symbology-by-rotation.htm

https://developers.arcgis.com/documentation/mapping-apis-and-services/visualization/data-driven-styles/visual-variables/#:~:text=Visual%20variables%20are%20a%20set,from%20a%20field%20or%20expression.

Hope this helps.

Re: Rotation Expression: Arcade expression issue

JBuchanan — Mon, 23 Feb 2026 16:48:41 GMT

Hi Preeti,
Sorry to dig up an old post, but I have some follow-up questions.

You mention the RotationExpression only accepts a fieldname or a value. Rotating by a field name works, but I can't get rotation by value to work.

I tried doing something like Layer.Renderer.RotationExpression = "45", but this seems to have no effect on the symbols. I would expect all symbols to rotate 45deg. Are values no longer supported here? I am on 200.6.

P.S. Arcade expressions are still not supported either, correct?

Re: Rotation Expression: Arcade expression issue

PreetiMaske — Wed, 25 Feb 2026 19:04:34 GMT

Hi @JBuchanan ,

I tried to reproduce and was able to. Looks like something regressed or changed over the period. It should work. I have logged a bug for us to look into this further. Thanks for bringing this to our attention.

Thanks,

Preeti