How to run a string formula at runtime with C#?

Question

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Best and shortest way to evaluate mathematical expressions

How to run a string formula at runtime with C#?

string formula = "10/2";
var result = Run(result);

thanks

Answer 1

Some sort of scripting engine would need to be loaded and then the string would be passed to the scripting engine to evaluate.

One would just need to know which scripting lanaguage use. Javascript, VbScript, Python, etc. Attached is a link to Iron Python and some code that shows how to use it. Using VS2010 .Net 4.

http://ironpython.net/

using IronPython.Hosting;
using IronPython.Runtime;

//Script Engine Reference
using Microsoft.Scripting.Hosting;
//Source Code Kind Reference
using Microsoft.Scripting;

//Iron Python Reference
using IronPython.Hosting;
using IronPython.Runtime;
//Source Execute
using Microsoft.CSharp;

            ScriptEngine engine = Python.CreateEngine();
            ScriptRuntime runtime = engine.Runtime;
            ScriptScope scope = runtime.CreateScope();

            //Simple Example

            string code = @"emp.Salary * 0.3";


            ScriptSource source =
              engine.CreateScriptSourceFromString(code, SourceCodeKind.Expression);


            var emp = new Employee { Id = 1000, Name = "Bernie", Salary = 1000 };


            scope.SetVariable("emp", emp);


            var res = (double)source.Execute(scope);

            MessageBox.Show(res.ToString());




 public class Employee
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public double Salary { get; set; }


    }