// Dynamic LINQ

// Doc: https://linq-dynamic.net/parse-lambda

​

// @nuget: System.Linq.Dynamic.Core

​

using System;

using System.Linq.Expressions;

using System.Linq.Dynamic.Core;

public class Program

{

    public static void Main()

    {

        ParameterExpression x = Expression.Parameter(typeof(int), "x");

        ParameterExpression y = Expression.Parameter(typeof(int), "y");

        LambdaExpression e = DynamicExpressionParser.ParseLambda(new ParameterExpression[] { x, y }, null, "(x + y) * 2");

​

        var c = e.Compile();

        var result = c.DynamicInvoke(1, 2);

​

        Console.WriteLine(result);

    }

}