// Dynamic LINQ - Stef

​

// @nuget: Microsoft.EntityFrameworkCore.DynamicLinq

​

using System;

using System.Linq;

using System.Collections.Generic;

using System.Linq.Dynamic.Core;

using System.Linq.Dynamic.Core.CustomTypeProviders;

using System.ComponentModel.DataAnnotations;

​

​

[DynamicLinqType]

public static class Utils

{

    public static int ParseAsInt(string value)

    {

        if (value == null)

        {

            return 0;

        }

​

        return int.Parse(value);

    }

​

    public static int IncrementMe(this int values)

    {

        return values + 1;

    }

}

​

public class Program

{

    public static void Main()

    {

        var query1 = new [] { new { Value = (string) null }, new { Value = "100" } }.AsQueryable();

        var result1 = query1.Select("Utils.ParseAsInt(Value)");

        FiddleHelper.WriteTable(result1);

        var query2 = new [] { new { Value = 42 }, new { Value = 0 } }.AsQueryable();

        var result2 = query2.Select("Value.IncrementMe()");

        FiddleHelper.WriteTable(result2);

    }

}