I am using chilkat library for many year and for many aspect. where JSON is one of the things i used regularly.

and instead of compact JSON output, i prefer/use pretty format.

here is how the output from Chilkat.JSON library looks like:

{
  "AdvancedObject": { //new/starting braces should be in new line
    "BoolTest": 1,
    "IntTest": 1234567890,
    "LongTest": 1234567890123456789,
    "DoubleTest": 74.26,
    "DateTimeTest": "2015-10-12 10-20-30",
    "StringTest": "Oh man! just a string it is!!",
    "EnumTest": "Good",
    "ChildObject": {  //new/starting braces should be in new line
      "Left": 12.21,
      "Top": 34.43,
      "Width": 123.45,
      "Height": 567.89
    },
    "ListString": [  //array of non-object items should be in single line
      "Salma Begum",
      "Abul Hossen",
      "Kamrul Hassan",
      "Minul Hassan",
      "Imran Hassan"
    ],
    "ListInt": [  //array of non-object items should be in single line
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9
    ],
    "ListAdvanced": [  //new/starting braces should be in new line
      {
        "Left": 12.21,
        "Top": 34.43,
        "Width": 123.45,
        "Height": 567.89
      },
      {
        "Left": 12.21,
        "Top": 34.43,
        "Width": 123.45,
        "Height": 567.89
      },
      {
        "Left": 12.21,
        "Top": 34.43,
        "Width": 123.45,
        "Height": 567.89
      }
    ]
  }
}

but i expect the following format, which can be get by using JSTool Plugin In Notepad++? which i like to get using c# and/or Chilkat.JSON library.

{
    "AdvancedObject":
    {
        "BoolTest": 1,
        "ChildObject":
        {
            "Height": 567.89,
            "Left": 12.21,
            "Top": 34.43,
            "Width": 123.45
        },
        "ColorTest": "0, 128, 255",
        "DateTimeTest": "2015-10-12 10-20-30",
        "DoubleTest": 74.26,
        "EnumTest": "Good",
        "IntTest": 1234567890,
        "ListAdvanced": [
            {
                "Height": 567.89,
                "Left": 12.21,
                "Top": 34.43,
                "Width": 123.45
            },
            {
                "Height": 567.89,
                "Left": 12.21,
                "Top": 34.43,
                "Width": 123.45
            },
            {
                "Height": 567.89,
                "Left": 12.21,
                "Top": 34.43,
                "Width": 123.45
            }
        ],
        "ListInt": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
        "ListString": ["Salma Begum", "Abul Hossen", "Kamrul Hassan", "Minul Hassan", "Imran Hassan"],
        "LongTest": 1234567890123456789,
        "StringTest": "Oh man! just a string it is!!"
    }
}

please don’t suggest me to use any other/additional library to include/reference. Because i am using chilkat for many others things, and don’t want to use another JSON library just to pretty format.

thanks in advance

best regards