C# Formula (123/2*15+22) evaluation

Question

Does someone know the best way to evaluate a string formula like this one: (123/2*15+22) within c#.

I have read that i should use an ICodeCompiled, but havent been able to find any good implementations to do this very simply thing.

Any suggestions are appreciated.

Would you want `((1/2)*2)` to be 0 or 1? – Anthony Pegram Feb 02 '11 at 16:43 — Anthony Pegram, Feb 02 '11 at 16:43

score 9 · Answer 1 · answered Feb 02 '11 at 18:46

9

class Program {
    static void Main(string[] args) {
        var calc = new System.Data.DataTable();
        Console.WriteLine(calc.Compute("(123/2*15+22)", ""));
        Console.ReadLine();
    }
}

Output: 944.5

answered Feb 02 '11 at 18:46

Hans Passant

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score 1 · Answer 2 · edited Feb 02 '11 at 16:38

1

I would take a look at MSDN's documentation on ICodeCompiler.

edited Feb 02 '11 at 16:38

Robert Levy

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answered Feb 02 '11 at 16:30

JC2

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-1: I'm sorry, but this singularly unhelpful answer, you could make it marginally more helpful by providing a link to the documentation. P.s. I'll remove the downvote if you make the answer better. – Binary Worrier Feb 02 '11 at 16:33

score 0 · Accepted Answer · answered Feb 02 '11 at 16:27

0

You could use an expression parser, such as this one at CodeProject.

answered Feb 02 '11 at 16:27

Reed Copsey

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score 0 · Answer 4 · answered Feb 02 '11 at 16:40

0

For this type of problem I typically recommend FLEE; I've had nothing but good experiences using it to do equation evaluation and some basic DSL work.

answered Feb 02 '11 at 16:40

Ron Warholic

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C# Formula (123/2*15+22) evaluation

4 Answers4