C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Linq;

namespace ConsoleApplication1
{
	public class Program
	{
		public static void Main()
		{
			var getOnlyFirst = false;

			var collection = Enumerable
				.Range(1, 100)
				.Select(x => new Item(x));

			var condition = new Func<Item, bool>(x => x.Prop%15 == 0);

			if (getOnlyFirst)
			{
				var resultItem = collection.First(condition);

				//вот здесь обработка для одного элемента
				Console.WriteLine(resultItem.Prop);
			}
			else
			{
				var resultItems = collection
					.Where(condition)
					.ToList();

				//вот здесь обработка для множества элементов
				foreach (var item in resultItems)
				{
					Console.WriteLine(item.Prop);
				}
			}
		}
	}

	class Item
	{
		public int Prop { get; set; }
		public Item(int prop)
		{
			Prop = prop;
		}
	}
}

​x
 
using System;
using System.Linq;
​
namespace ConsoleApplication1
{
    public class Program
    {
        public static void Main()
        {
            var getOnlyFirst = false;
​
            var collection = Enumerable
                .Range(1, 100)
                .Select(x => new Item(x));
​
            var condition = new Func<Item, bool>(x => x.Prop%15 == 0);
​
            if (getOnlyFirst)
            {
                var resultItem = collection.First(condition);
​
                //вот здесь обработка для одного элемента
                Console.WriteLine(resultItem.Prop);
            }
            else
            {
                var resultItems = collection
                    .Where(condition)
                    .ToList();
​
                //вот здесь обработка для множества элементов
                foreach (var item in resultItems)
                {
                    Console.WriteLine(item.Prop);
                }
            }
        }
    }
​
    class Item
    {
        public int Prop { get; set; }
        public Item(int prop)
        {
            Prop = prop;
        }
    }
}
​

Compilation error (line 4, col 7): The type or namespace name 'Json' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 36, col 21): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 51, col 28): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 22, col 26): The name 'JsonSchema' does not exist in the current context
Compilation error (line 36, col 51): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 37, col 25): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 37, col 44): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 39, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 40, col 31): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 43, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 44, col 31): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 51, col 59): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 52, col 15): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 53, col 17): The name 'MetaSchemas' does not exist in the current context
Compilation error (line 56, col 25): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 56, col 44): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 59, col 30): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 60, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 67, col 32): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 68, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 75, col 31): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 76, col 23): The name 'SchemaValueType' does not exist in the current context
Compilation error (line 78, col 28): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 79, col 25): The type or namespace name 'JsonSchemaBuilder' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 83, col 19): The type or namespace name 'Dictionary<,>' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 83, col 38): The type or namespace name 'JsonSchema' could not be found (are you missing a using directive or an assembly reference?)

Last Run:	10:18:09 pm
Compile:	0.007s
Execute:	0s
Memory:	0b
CPU:	0s

View IL Code