MARKUS

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace KCOM

{

    public static class Extensions

    {

        public static IEnumerable<TSource> WhereIf<TSource>(this IEnumerable<TSource> source, bool condition, Func<TSource, bool> predicate)

        {

            if (condition)

                return source.Where(predicate);

            else

                return source;

        }

        public static IEnumerable<TSource> WhereIf<TSource>(this IEnumerable<TSource> source, bool condition, Func<TSource, int, bool> predicate)

        {

            if (condition)

                return source.Where(predicate);

            else

                return source;

        }

    }

}