#nullable enable

using System;

using System.Collections.Generic;

​

public enum ParamName {

  NSYFormSets = 1,

  NSYMaterialRejectionRePickingMode = 2,

  NSYMaterialThicknessTolerance = 3,

  NSYUnitSystem = 4,

  NSYUnitType = 5,

  NWSAssemblyShowBottomArea = 6,

  NWSAssemblyStartAllowed = 7,

  NWSChargeNumberMandatoryOnComplete = 8,

  NWSChargeNumberMandatoryOnStart = 9,

  NWSCuttingUnbornRemnantAllowed = 10,

  NWSEndProductUpdatedInWorkPhase = 11,

  NWSPackageSaveToHistoryTable = 12,

  NWSPackingMaterialInNxinventory = 13,

  NWSPackingMaterialMode = 14,

  NWSPackingRequiredForCompletion = 15,

  NWSPickingMandatory = 16,

  NWSPickingUseStockItemSelection = 17,

  NWSPurchaseItemStockItemAddingAllowed = 18,

  NWSStorageLocationLimitByType = 19,

  NWSStorageLocationLimitByWorkPlace = 20,

  NWSStorageLocationMandatory = 21,

  NWSUpcomingWorksVisible = 22,

  NWSVerificationWindowType = 23,

  NWSXMLLogWrite = 24

}

​

public enum PackingRequiredForCompletion {

  False = 0,

  True = 1,

  TrueWithSkipping = 2,

  FalseWithSkipping = 3

}

​

​

public class Program

{

    private static T? GetEnumValueByWorkplaceIDAsync<T>( int workplaceID, ParamName? parName = null ) {

        if (parName is null) {

            object value = PackingRequiredForCompletion.TrueWithSkipping;

            if (value is T) {

                return (T)value;

            } else {

                throw new ArgumentException($"Value for parameter '{parName}' is not of type {typeof(T)}");

            }

        } else {

            if( typeof(T) == typeof(bool))

                return default(T);

            else

                throw new KeyNotFoundException($"Parameter '{parName}' not found in the dictionary");

        }

    }

    public static void Main()

    {

        var isPackageMaterialInNxinventoryTable = GetEnumValueByWorkplaceIDAsync<bool>( 1, ParamName.NWSPackageSaveToHistoryTable );

        Console.WriteLine( isPackageMaterialInNxinventoryTable.ToString() );

        var packingRequiredForCompletion = GetEnumValueByWorkplaceIDAsync<PackingRequiredForCompletion>( 2 );

        Console.WriteLine( packingRequiredForCompletion.ToString() );

    }

}