C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
					
public class Program
{
	public static void Main()
	{
		// the count and capacity both start at 0
		var list = new List<int>();
		
		Console.WriteLine("Start:");
		Console.WriteLine(list.Count);
		Console.WriteLine(list.Capacity);
		
		// the count increases to 10000
		// and the capacity increases to some number no less than 10000
		for (var i = 0; i < 10000; i++) {
			list.Add(1);
		}
		
		Console.WriteLine("After adding:");
		Console.WriteLine(list.Count);
		Console.WriteLine(list.Capacity);

		// the count decreases back to 0
		// but the capacity is still as large as after adding 10000 elements
		for (var i = 9999; i >= 0; i--) {
		    list.RemoveAt(i);
		}
		
		Console.WriteLine("After removing:");
		Console.WriteLine(list.Count);
		Console.WriteLine(list.Capacity);
	}
}

​x
 
using System;
using System.Collections.Generic;
                    
public class Program
{
    public static void Main()
    {
        // the count and capacity both start at 0
        var list = new List<int>();
        
        Console.WriteLine("Start:");
        Console.WriteLine(list.Count);
        Console.WriteLine(list.Capacity);
        
        // the count increases to 10000
        // and the capacity increases to some number no less than 10000
        for (var i = 0; i < 10000; i++) {
            list.Add(1);
        }
        
        Console.WriteLine("After adding:");
        Console.WriteLine(list.Count);
        Console.WriteLine(list.Capacity);
​
        // the count decreases back to 0
        // but the capacity is still as large as after adding 10000 elements
        for (var i = 9999; i >= 0; i--) {
            list.RemoveAt(i);
        }
        
        Console.WriteLine("After removing:");
        Console.WriteLine(list.Count);
        Console.WriteLine(list.Capacity);
    }
}

Json.NET version: Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed
Original JSON:
{"records":[{"record":{"Ch_ID":"27","User_id":"1","Ch_Name":"test1","Ch_Description":"test1description","Ch_Starttime":""}},{"record":{"Ch_ID":"29","User_id":"1","Ch_Name":"w","Ch_Description":"ww","Ch_Starttime":"12"}},{"record":{"Ch_ID":"30","User_id":"1","Ch_Name":"qq","Ch_Description":"qqqdescription","Ch_Starttime":"1222"}},{"record":{"Ch_ID":"31","User_id":"1","Ch_Name":"v","Ch_Description":"vv","Ch_Starttime":"1"}},{"record":{"Ch_ID":"32","User_id":"1","Ch_Name":"n","Ch_Description":"nnnn","Ch_Starttime":"111"}}]}

Re-serialized data table:
[
  {
    "Ch_ID": "27",
    "User_id": "1",
    "Ch_Name": "test1",
    "Ch_Description": "test1description",
    "Ch_Starttime": ""
  },
  {
    "Ch_ID": "29",
    "User_id": "1",
    "Ch_Name": "w",
    "Ch_Description": "ww",
    "Ch_Starttime": "12"
  },
  {
    "Ch_ID": "30",
    "User_id": "1",
    "Ch_Name": "qq",
    "Ch_Description": "qqqdescription",
    "Ch_Starttime": "1222"
  },
  {
    "Ch_ID": "31",
    "User_id": "1",
    "Ch_Name": "v",
    "Ch_Description": "vv",
    "Ch_Starttime": "1"
  },
  {
    "Ch_ID": "32",
    "User_id": "1",
    "Ch_Name": "n",
    "Ch_Description": "nnnn",
    "Ch_Starttime": "111"
  }
]

Last Run:	4:14:41 am
Compile:	0.219s
Execute:	0.188s
Memory:	853.44kb
CPU:	0.312s

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