// C# Eval Expression

// Doc: https://eval-expression.net/linq-dynamic

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// @nuget: Z.Expressions.Eval

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/*

## LINQ Execute Method

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The LINQ Execute method lets you use a dynamic string expression to execute any LINQ methods.

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That is the most powerful LINQ method, as it allows you to chain multiple LINQ expressions one after another one.

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Keep in mind that you currently execute C# code, so you should call directly LINQ method (`Where`) and not LINQ dynamic method (`WhereDynamic`).

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In this example, we will select a list of product and dynamically perform a `Where` clause by their value, then an Order By and return a List.

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See more: https://eval-expression.net/linq-dynamic

*/

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using System;

using System.Collections.Generic;

using System.Linq;

using Z.Expressions;

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public class Program

{

    public static void Main()

    {

        var list1 = new List<int>() { 1, 2, 3, 4, 5 };

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        var list2 = list1.Execute<List<int>>("Where(x => x > 2).OrderBy(x => x).ToList()");

        var list3 = list1.Execute<List<int>>("Where(x => x > y).OrderBy(x => x).ToList()", new { y = 2 });

        FiddleHelper.WriteTable("1 - list1:", list1);

        FiddleHelper.WriteTable("2 - list2:", list2);

        FiddleHelper.WriteTable("3 - list3:", list3);

    }

}

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