How to read and iterate JSON file contents?

Question

5.00/5 (1 vote)

See more:

Find my JSON file below.

{
"webroot": "wwwroot",
"userSecretsId": "aspnet5-WebApplication7-0de8c0d7-92a5-43b4-a3f1-afeed2785dfe",
"version": "1.0.0-*",

"dependencies": {
"EntityFramework.SqlServer": "7.0.0-beta5",
"EntityFramework.Commands": "7.0.0-beta5",
"Microsoft.AspNet.Mvc": "6.0.0-beta5",
},

"exclude": [
"wwwroot",
"node_modules",
"bower_components"
}

I can read value of "webroot" as string and "exclude" as array using following snippet.

C#

string file = File.ReadAllText("project.json");
Product pro = JsonConvert.DeserializeObject<Product>(file);

My requirement is to read each value under dependency node and validate it. Then to add a new value and write it back to the json fie. Please help.

Posted 13-Oct-15 21:43pm

Mathivanan KP

Add a Solution

Comments

F-ES Sitecore 14-Oct-15 4:50am

Rather than using a concrete Product class you might need to use dynamic objects

http://stackoverflow.com/questions/8738031/deserializing-json-using-json-net-with-dynamic-data

https://weblog.west-wind.com/posts/2012/Aug/30/Using-JSONNET-for-dynamic-JSON-parsing

or use newtonsoft's native jobject type classes. Google for "dynamic json newtonsoft" and you'll find other examples.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Krunal Rohit · Answer 1 · 2015-10-13T23:20:00

Solution 1

You might need NewtonSoft.Json/[^].
Use jObject[^]
An excellent example:
http://www.newtonsoft.com/json/help/html/ReadJson.htm[^] and http://www.newtonsoft.com/json/help/html/DeserializeWithJsonSerializerFromFile.htm[^]

-KR

Posted 13-Oct-15 23:20pm

Krunal Rohit