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Is it possible to assign an int variable a value that is a result of expression written in a string? E.g. I have a string "5 - 3" and the expected result is 2.

tyumener
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  • possible duplicate of [in c#: expression evaluation function like flash script](http://stackoverflow.com/questions/534894/in-c-expression-evaluation-function-like-flash-script) – H H Sep 28 '10 at 10:12
  • Possible duplicate of [Converting string expression to Integer Value](http://stackoverflow.com/questions/2607798/). – Dour High Arch May 09 '17 at 01:21

3 Answers3

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You can use Calculator.NET

Giorgi
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If you fancy writing your own (I did, it's fun!). Have a look on Wikipedia for:

Shunting Yard Algorithm and Reverse Polish Notation

The pseudo-code is really clear and it's a great learning experience

veggerby
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RichK
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There is nothing built into the framework, so you can either built your own mathematical expression parser, or use one of the many libraries out there.

A search on ".net arithmetic parser" comes up with many results, some free, some not.

For instance:

Oded
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