Mathematical Expression

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Posted on by Sohaib Cheema

49,668 Super User 2026 Season 2

In 2012 for mathematical expression we used XppCompiler which is deprecated in Dynamics 365 .

In Dynamics 365 "ProdMathEvaluator::evaluate" and "Microsoft.Dynamics.Ax.Frameworks.Controls.ProductConfiguration.MathEvaluator::Evaluate" are available but these functions produce error when expression contains ternary operator

i.e. "4<3? true ,false"

Would be kind of you, if you may suggest any alternative.

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Mea_ 60,286 on at

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Hi Sohaib,

You probably can do the same using CSharpCodeProvider blogs.msdn.microsoft.com/.../c-3-0-and-codedom

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Martin Dráb 240,278 Most Valuable Professional on at

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I've never seen a ternary operator in mathematics.

Also, relational operators (such as <) returns true or false (that's why you can use them in the condition of the ternary operator), therefore you already have the result.

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Sohaib Cheema 49,668 Super User 2026 Season 2 on at

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Hi ievgen,

cheers for suggestion. That sounds a workable way.

Hi Martin,

You are right. that makes sense what you said. But we want to use different expressions based on some condition, for that purpose we need ternary operator

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Martin Dráb 240,278 Most Valuable Professional on at

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Okay, but then you're not talking about mathematical expressions and you can't use tools for mathematical expressions (such as MathEvaluator). Therefore your next step is analyzing what kind of expressions you need, so you can't start looking for the right solution.

Ievgen suggestion is great if you want to generate arbitrary C# code, but maybe you don't need nor want it. Maybe you can use expressions of GER, use an interpreted language, design a simple custom DSL by yourself or so...

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Mohamed Asarafali 445 on at

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Hi sohaib,

HAve you find any resolution to it. IF yes please could you post it; It would be helpful

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Maen.Moutaz 239 on at

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Hi Sohaib ,

How i can evaluate expression like this "(NoYes::Yes==NoYes::Yes) && (NoYes::No==NoYes::No)" in D365

Any suggestion ?

thanks ,

Ma'en.M

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Martin Dráb 240,278 Most Valuable Professional on at

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Ma'en Moutaz, I think the whole thread is about such suggestions. Have you considered the thing with which this discussion started, i.e. ProdMathEvaluator?

If none of the suggestions work for you, can you explain why not, so we can suggest something that solves this problem?

Also, consider a more realistic example. You example doesn't have to be evaluated at runtime, because it doesn't have any variables.

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