Converting a String value with operator signs in C# [duplicate]

Question

 string stringValue = "1+2+3";

How can I convert the above string value with operators, "1+2+3", so that it can be assigned to the intvalue as shown below in C#.

 int intValue = 1+2+3;

i.e intValue = 6;

You could compile it with Microsoft.CSharp.CSharpCodeProvider of course... — Niels Keurentjes
– Niels Keurentjes, Commented May 31, 2013 at 15:58
Lol that's actually the answer there. My god, what happened to good old stack based processing of a simple mathematical expression? — Niels Keurentjes
– Niels Keurentjes, Commented May 31, 2013 at 15:59
Please try harder to research instead of asking these redundant questions. It's easier to google than to type all those stuff you've typed. — aiapatag
– aiapatag, Commented May 31, 2013 at 16:07

jason · Accepted Answer · 2013-05-31 15:58:33Z

0

You need to compile on the fly. See for example Evaluate C# Code or Flee.

answered May 31, 2013 at 15:58

jason

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Comments

aiapatag · Accepted Answer · 2013-05-31 16:05:39Z

0

  var result = new DataTable().Compute("2-3/4*12", null);

ANd this has been asked so many times before.

answered May 31, 2013 at 16:05

aiapatag

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nicolas · Accepted Answer · 2013-05-31 16:18:10Z

0

I have used this library in many projects: C# calculation engine

It's very simple to use:

var ce = new CalcEngine();
double result = (double)ce.Evaluate("1+2+3");

answered May 31, 2013 at 16:13

nicolas

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