What-version-of-C-is-WL8-running-on

C# 9 was released with .NET 5 in 2020. Of course WL8 supports it.

I ran a simple test for C# 9.0 support. I created a C# strategy, not externally linked. I added a few lines in Execute(...) that are for C# 8.0 and above. The code follows...

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Data;
using WealthLab.Indicators;
using System.Collections.Generic;

namespace WealthScript2 
{
    public class MyStrategy : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
        }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
         var td = bars.DateTimes[idx].TimeOfDay;

         if (td is { Hours: 10, Minutes: <= 7 })
         {
            return;
         }

         if (!HasOpenPosition(bars, PositionType.Long))
            {
                //code your buy conditions here
            }
            else
            {
                //code your sell conditions here
            }
        }

        //declare private variables below

    }
}

When you compile the code, the following errors occur:



Maybe something is wrong in my environment. But, if not then this seems like it may be a WL 8 problem. I'm using build 37 with the latest extensions.

Hi @Eugene. Thanks for confirming. Here is the code that is throwing an error

CODE:
   public class IntradayOptionDemo : UserStrategyBase
   {
      public record OptionContracts(string optSymbol, double optStrike, double price, double delta)
      {
      }

QUOTE:
Compiled at 6/21/2023 11:26:13
14: The type or namespace name 'record' could not be found (are you missing a using directive or an assembly reference?)
14: 'IntradayOptionDemo.OptionContracts(string, double, double, double)' must declare a body because it is not marked abstract, extern, or partial
119: The type or namespace name 'OptionContracts' could not be found (are you missing a using directive or an assembly reference?)
137: The type or namespace name 'OptionContracts' could not be found (are you missing a using directive or an assembly reference?)
147: The name 'OptionContractsList' does not exist in the current context
244: The field 'IntradayOptionDemo.contractQty' is never used
251: The field 'IntradayOptionDemo._broker' is never used