Error communication and recovery approaches in .NET

Question

I am trying to do error communication and recovery in my C# code without using Exceptions. To give an example, suppose there is a Func A, which can be called by Func B or Fu

Answer 1

How about a common FunctionResult object that you use as an out param on all your methods that you don't want to throw exceptions in?

public class FuncResultInfo
    {
        public bool ExecutionSuccess { get; set; }
        public string ErrorCode { get; set; }
        public ErrorEnum Error { get; set; }
        public string CustomErrorMessage { get; set; }

        public FuncResultInfo()
        {
            this.ExecutionSuccess = true;
        }

        public enum ErrorEnum
        {
            ErrorFoo,
            ErrorBar,
        }
    }

    public static class Factory
    {
        public static int GetNewestItemId(out FuncResultInfo funcResInfo)
        {
            var i = 0;
            funcResInfo = new FuncResultInfo();

            if (true) // whatever you are doing to decide if the function fails
            {
                funcResInfo.Error = FuncResultInfo.ErrorEnum.ErrorFoo;
                funcResInfo.ErrorCode = "234";
                funcResInfo.CustomErrorMessage = "Er mah gawds, it done blewed up!";
            }
            else
            {
                i = 5; // whatever.
            }

            return i;
        }
    }

Make sure all of your functions that can fail without exceptions have that out param for FuncResultInfo