Parse JSON in C#

Question

I have JSON file like this

{
   "Value":{
      "9824800036":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9127801433":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9127801368":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9127801458":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9127801485":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9814008909":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9814008920":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9814008911":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9814008910":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9116665832":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9814008955":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      },
      "9116666000":{
         "TZ":0,
         "AllowChange":3,
         "InCall":true,
         "OutCall":true,
         "BeginDT":"00:00:00",
         "EndDT":"23:59:59",
         "Days":127
      }
   },
   "Success":true,
   "Error":null,
   "Failure":false
}

How i can get

"9814008920","9814008911","9814008910","9116665832","9814008955" ?

Answer 1

I just used Newtonsoft.Json and was able to read your json with the following code:

string json = File.ReadAllText(pathToFile);
dynamic jsonObj = JsonConvert.DeserializeObject(json);
dynamic value = jsonObj["Value"];

foreach (var val in value)
{
     Console.WriteLine(val.Name);
}

You will need to include Microsoft.CSharp as a reference to your project for this to compile.

Answer 2

As pointed out, if you don't have legal JSON, then you'll need to write your own parser.

This isn't that difficult to do, but you haven't provided a sufficient definition of your source files for me to write it for you. For example, did you really post the correct JSON? Does it always start with "value" , and how much of the other stuff is fixed or can vary?

Answer 3

An alternative solution if you want to use custom parsing :

var source = File.ReadAllText(pathToFile);
string pattern = @"""\d{10}""";    // Note: {10} wil match only 10 digit number           
var matches = Regex.Matches(source, pattern);
foreach (var val in matches)
   Console.WriteLine(val);