using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var eb = new Xlinq.Expressions.ExpressionBuilder();

        var scope = new Xlinq.Scope.DataScope(){ Values = new Dictionary<string,object>(){

            {"test", 12.345 }

        } };

        var expr = eb.Compile("iif(test.typeof()=='number',test.round(2).convert('string').replace('.',',') ,0)");

        Console.WriteLine(expr(scope));

    }

}