How iterate through json object in c#

Question

im using the next code:

dynamic jsonObj = JsonConvert.DeserializeObject(reader.ReadToEnd());

foreach (var item in jsonObj)

{

 Console.WriteLine("");

}

Where reader.ReadToEnd() has a json string.

But i have an error on foreach,

Error 13 foreach statement cannot operate on variables of type 'System.Collections.IEnumerable' because 'System.Collections.IEnumerable' does not contain a public definition for 'GetEnumerator' C:\Users\myUser\Desktop\app\appRecept\Paises.cs 47 29 appPreregistro

How does your json structure look like? Does it look like an array or a list in watch window? — shahkalpesh
– shahkalpesh, Commented Jan 26, 2016 at 19:57
my json looks like this: { "success" : "true", "states" : [ { "id" : "1000", "name" : "AGUASCALIENTES", }, { "id" : "1001", "name" : "BAJA CALIFORNIA", }, { "id" : "1002", "name" : "BAJA CALIFORNIA SUR", }, { "id" : "1004", "name" : "ZACATECAS", } ] } — Matvi
– Matvi, Commented Jan 26, 2016 at 22:20

Gabriel Luci · Accepted Answer · 2016-01-26 20:04:41Z

1

If you're deserializing an array of objects from JSON, something that looks like this:

[
  {blah},
  {blah},
  {blah}
]

then deserialize to a List type:

var jsonObj = JsonConvert.DeserializeObject<List<dynamic>>(reader.ReadToEnd());

answered Jan 26, 2016 at 20:04

Gabriel Luci

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2 Comments

Matvi Over a year ago

my json looks like this:

{ "success" : "true", "states" : [ { "id" : "1000", "name" : "AGUASCALIENTES", }, { "id" : "1001", "name" : "BAJA CALIFORNIA", }, { "id" : "1002", "name" : "BAJA CALIFORNIA SUR", }, { "id" : "1004", "name" : "ZACATECAS", } ] }

The way you deserialize the string object throug an exception : Cannot deserialize the current JSON object into type list, because the type requires a JSON array

Gabriel Luci Over a year ago

If you want to loop through the states, then change your loop to: foreach (var item in jsonObj.states)

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